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Evidence-Based Nutrition Plans and Expert Exercise Programmes

Printable guides and programmes from leading researchers, clinicians, and coaches. Every resource includes the original sources. Free to download.

Plant-Based Diets

Dr. Michael Greger's Daily Dozen

Source: Dr. Michael Greger / NutritionFacts.org

A daily checklist of the healthiest foods and behaviours, drawn from Dr. Greger's analysis of thousands of peer-reviewed nutrition studies. Published in his book How Not to Die (2015) and updated in How Not to Die Cookbook (2017).

The Twelve Daily Foods

  • Beans: 3 servings (serving = 60g cooked beans, 30g hummus, or 240ml soy/pea milk)
  • Berries: 1 serving (60g fresh, frozen, or dried; or 120ml 100% berry juice)
  • Other fruits: 3 servings (1 medium fruit, 60g dried, or 120ml 100% juice)
  • Cruciferous vegetables: 1 serving (30g raw or 60g cooked — broccoli, kale, cauliflower)
  • Greens: 2 servings (30g raw or 60g cooked — spinach, Swiss chard, collard greens)
  • Other vegetables: 2 servings (130g raw or 60g cooked; 240ml vegetable juice)
  • Flaxseeds: 1 serving (1 tablespoon ground flaxseed daily)
  • Nuts and seeds: 1 serving (30g nuts or seeds; or 2 tablespoons nut butter)
  • Herbs and spices: include turmeric with black pepper at least once daily
  • Whole grains: 3 servings (85g cooked grains, pasta, or corn; 2 slices wholegrain bread)
  • Beverages: 5 glasses of water; green tea counts; coffee is acceptable
  • Exercise: 90 minutes of moderate activity or 40 minutes of vigorous activity

Key Evidence Behind the Daily Dozen

  • Legumes: associated with 8% reduction in cardiovascular disease risk per daily serving (Afshin et al., 2014, American Journal of Clinical Nutrition)
  • Berries: highest antioxidant density of any food group; associated with slower cognitive decline in older adults (Devore et al., 2012, Annals of Neurology)
  • Cruciferous vegetables: sulforaphane activates Nrf2 pathway; associated with reduced cancer risk across 17 studies (Liu et al., 2012, BMC Cancer)
  • Flaxseeds: highest plant source of ALA omega-3; lignans associated with reduced breast and prostate cancer risk
  • Whole grains over refined: each 28g serving associated with 5% lower all-cause mortality (Aune et al., 2016, British Medical Journal)
Note: The Daily Dozen is a goal, not a minimum. If you achieve 10 of 12 consistently, you are doing exceptionally well by any clinical measure.

Sources

  • Greger M, Stone G. How Not to Die. Flatiron Books, 2015.
  • Afshin A, et al. (2014). Consumption of nuts and legumes and risk of incident ischemic heart disease, stroke, and diabetes. American Journal of Clinical Nutrition, 100(1), 278-288.
  • Devore EE, et al. (2012). Dietary intakes of berries and flavonoids in relation to cognitive decline. Annals of Neurology, 72(1), 135-143.
  • Aune D, et al. (2016). Whole grain consumption and risk of cardiovascular disease, cancer, and all cause mortality. British Medical Journal, 353, i2716.
Heart Health

Dr. Dean Ornish's Spectrum Diet for Heart Reversal

Source: Dr. Dean Ornish / Ornish Lifestyle Medicine

The first diet clinically proven to reverse coronary artery disease without drugs or surgery. The Lifestyle Heart Trial (1990) demonstrated a 91% reduction in angina frequency and measurable reversal of arterial plaque in the intervention group after one year.

The Four Pillars of the Ornish Programme

  • Diet: a very low-fat, plant-based whole food diet (fat below 10% of total calories)
  • Exercise: 30 minutes of moderate aerobic exercise at least 5 days per week
  • Stress management: 1 hour per day of yoga, meditation, and breathing exercises
  • Social support: group support sessions to address isolation and emotional eating

What to Eat: The Ornish Reversal Diet

  • Unlimited: vegetables, fruits, whole grains, legumes, soy products
  • Very limited: non-fat dairy products (up to 2 servings daily), egg whites
  • Eliminated: meat, fish, poultry of any kind
  • Eliminated: oils, fats, and added sugars of all kinds
  • Eliminated: all refined or processed foods
  • Limit caffeine to one cup of coffee or two cups of tea per day
  • No alcohol above 2 standard drinks per day

Clinical Evidence at 5 Years

  • The Lifestyle Heart Trial five-year follow-up (Ornish et al., 1998, JAMA) found that the intervention group had further reversal of arterial stenosis, while the control group had continued progression
  • Average LDL cholesterol reduction: 37% without cholesterol-lowering medication
  • 2.5 times fewer cardiac events in the intervention group compared to controls
  • CMS (Medicare) approved the Ornish Intensive Cardiac Rehabilitation Programme in 2010 following clinical outcomes data
Note: The Ornish reversal diet is the strictest version of his spectrum. For prevention rather than reversal, more liberal plant-based eating with occasional small amounts of healthy fats is supported by the research.

Sources

  • Ornish D, et al. (1990). Can lifestyle changes reverse coronary heart disease? The Lifestyle Heart Trial. Lancet, 336(8708), 129-133.
  • Ornish D, et al. (1998). Intensive lifestyle changes for reversal of coronary heart disease. JAMA, 280(23), 2001-2007.
  • Frattaroli J, et al. (2008). Clinical events in prostate cancer lifestyle trial: results from two years of follow-up. Urology, 72(6), 1319-1323.
Plant-Based Diets

PCRM Plant-Based Nutrition Starter Guide

Source: Dr. Neal Barnard / Physicians Committee for Responsible Medicine

Based on the clinical research of Dr. Neal Barnard and the Physicians Committee for Responsible Medicine, including the landmark GEICO study (2010) showing a low-fat vegan diet improved weight, cholesterol, blood sugar, and blood pressure significantly more than the standard ADA diabetic diet.

The New Four Food Groups (PCRM, 1991)

  • Whole grains: 5 or more servings daily (bread, pasta, rice, oats, corn, quinoa)
  • Vegetables: 3 or more servings daily; aim for variety and colour
  • Fruits: 3 or more servings daily; fresh, frozen, or dried
  • Legumes: 2 or more servings daily (beans, lentils, peas, tofu, tempeh)

What to Avoid

  • All animal products: meat, fish, poultry, dairy, eggs
  • Added oils and fats, including olive oil (for weight loss and heart reversal)
  • Refined grains and high-sugar foods
  • Highly processed "vegan" convenience foods

Essential Supplements on a Plant-Based Diet

  • Vitamin B12: 25-100mcg daily or 1000mcg three times per week (non-negotiable)
  • Vitamin D3: 1000-2000 IU daily, especially in low-sunlight climates
  • Omega-3 (algal DHA/EPA): 250mg daily if not eating walnuts, flaxseed, and chia regularly
  • Iodine: use iodised salt or take 150mcg supplement if not consuming seaweed
  • Optional: zinc 8-11mg daily if not eating sufficient seeds and legumes

Clinical Outcomes from PCRM Research

  • GEICO Corporate Wellness Study (2010): vegan group lost 4.3kg vs 0.08kg in control group over 18 weeks
  • Type 2 diabetes management: HbA1c improvements comparable to medication in the PCRM-Barnard diabetes trial (2006, Diabetes Care)
  • LDL cholesterol reductions of 13-17% in randomised trials without calorie restriction
  • Significant improvements in insulin sensitivity within 16 weeks in randomised trials

Sources

  • Barnard ND, et al. (2006). A low-fat vegan diet improves glycemic control and cardiovascular risk factors in a randomized clinical trial in individuals with type 2 diabetes. Diabetes Care, 29(8), 1777-1783.
  • Mishra S, et al. (2013). A multicenter randomized controlled trial of a plant-based nutrition program to reduce body weight and cardiovascular risk in the corporate setting: the GEICO study. European Journal of Clinical Nutrition, 67(7), 718-724.
  • Barnard ND, et al. (2009). A low-fat vegan diet and a conventional diabetes diet in the treatment of type 2 diabetes: a randomized, controlled, 74-week clinical trial. American Journal of Clinical Nutrition, 89(5), 1588S-1596S.
Weight Management

Dr. John McDougall's Starch Solution Guide

Source: Dr. John McDougall / McDougall Health and Medical Center

Based on Dr. McDougall's 40 years of clinical practice and research showing that starch-based whole food plant diets are the optimal human diet. Published in peer-reviewed journals and in The Starch Solution (2012). The free McDougall Programme has been available online since 2002.

The Starch Solution Core Principle

  • Healthy, active populations throughout history have been starch-based eaters (rice in Asia, potatoes in the Andes, corn in Central America, wheat in the Middle East)
  • Starches are the predominant fuel for the human body and brain and do not cause obesity in whole food form
  • Animal proteins and dietary fats are the primary drivers of obesity, heart disease, and diabetes at the population level

What to Eat: The McDougall Programme

  • Foundation (eat freely): potatoes, sweet potatoes, rice, corn, oats, wheat, barley, quinoa, lentils, beans
  • Add liberally: all vegetables, especially dark leafy greens
  • Add moderately: all fruits
  • Avoid entirely: all meat, dairy, and eggs
  • Avoid: oils of all kinds, including olive oil and coconut oil
  • Sodium: use salt as needed; restricting sodium is not necessary on a starch-based diet without added processed foods

McDougall Maximum Weight Loss Adjustments

  • For accelerated weight loss, limit high-fat plant foods: avocado, nuts, seeds, nut butters
  • Limit high-sugar fruits: mangoes, dried fruits, fruit juice
  • Eat your calories rather than drinking them
  • Maintain the full starch base; do not reduce starch portions to lose weight
  • Exercise daily: 30 minutes minimum walking

Sources

  • McDougall J, et al. (2014). Effects of 7 days on an ad libitum low-fat vegan diet: the McDougall Program cohort. Nutrition Journal, 13, 99.
  • Barnard ND, Freston JW, Yokoyama K. (2019). Diets and serum lipoprotein levels: a review of clinical studies. American Journal of Cardiology, 123(10), 1763-1773.
  • McDougall J. The Starch Solution. Rodale Press, 2012.
Heart Health

Mediterranean Diet: Harvard Healthy Eating Principles

Source: Harvard T.H. Chan School of Public Health / Oldways Preservation Trust

The Mediterranean dietary pattern, studied extensively at Harvard and validated in the PREDIMED trial (2013, New England Journal of Medicine), is associated with a 30% reduction in major cardiovascular events, significant reductions in type 2 diabetes, and lower rates of cognitive decline.

Eat Daily

  • Vegetables: at least 4 servings per day, varied in colour and type
  • Fruits: 2 to 3 servings per day
  • Whole grains: 3 or more servings per day (bread, pasta, rice, couscous, bulgur)
  • Olive oil: used as the primary fat for cooking and dressing
  • Legumes: at least 3 times per week
  • Nuts and seeds: a small handful daily
  • Herbs and spices: used freely to reduce need for salt
  • Water and herbal teas as primary beverages

Eat Weekly

  • Fish and seafood: at least twice per week, especially oily fish (salmon, mackerel, sardines)
  • Poultry, eggs, and dairy: moderate amounts, a few times per week
  • Red wine: up to one small glass with meals for those who drink (optional)

Limit or Avoid

  • Red meat: no more than a few times per month
  • Processed meats: minimise significantly
  • Sweets and added sugars: occasional and small amounts
  • Refined grains and ultra-processed foods: minimise
  • Added salt beyond cooking and seasoning with herbs

Key Evidence

  • PREDIMED trial (Estruch et al., 2013, NEJM): 30% relative risk reduction in major cardiovascular events versus low-fat diet
  • PREDIMED trial (Toledo et al., 2015, JAMA Internal Medicine): 30% lower risk of type 2 diabetes
  • Cognitive decline: Mediterranean diet associated with 33% lower risk of cognitive impairment (Scarmeas et al., 2009, Annals of Neurology)
  • All-cause mortality: each 2-point increase in Mediterranean Diet Score associated with 8% lower mortality (Sofi et al., 2010, BMJ)

Sources

  • Estruch R, et al. (2013). Primary prevention of cardiovascular disease with a Mediterranean diet. New England Journal of Medicine, 368(14), 1279-1290.
  • Sofi F, et al. (2010). Accruing evidence on benefits of adherence to the Mediterranean diet on health: an updated systematic review and meta-analysis. American Journal of Clinical Nutrition, 92(5), 1189-1196.
  • Scarmeas N, et al. (2009). Mediterranean diet and mild cognitive impairment. Archives of Neurology, 66(2), 216-225.
Plant-Based Diets

T. Colin Campbell: Whole Food Plant-Based Eating Principles

Source: T. Colin Campbell Center for Nutrition Studies / Cornell University

Based on the research of T. Colin Campbell, Professor Emeritus of Nutritional Biochemistry at Cornell University, including the China-Cornell-Oxford Project (The China Study), the most comprehensive nutritional study ever conducted. Dr. Campbell's research formed part of the scientific basis for national dietary guidelines in multiple countries.

The Whole Food Plant-Based (WFPB) Framework

  • Whole foods: eat foods as close to their natural state as possible, minimally processed
  • Plant-based: all foods come from plant sources; no animal products
  • No oil: oils are processed foods and should be minimised even if plant-based
  • No calorie counting: eat until satisfied; the fibre and water content of whole plants self-regulates appetite

Daily Food Targets

  • Vegetables: half your plate at every meal; all types and colours
  • Whole grains and starches: 25 to 30% of calories from whole grains, potatoes, sweet potatoes
  • Legumes: at least 1 to 2 cups daily (beans, lentils, peas, edamame)
  • Fruits: 2 to 4 servings daily, whole rather than juiced
  • Nuts and seeds: 1 to 2 tablespoons of ground seeds daily; small handful of nuts
  • Calcium-rich plants: kale, bok choy, fortified plant milks, tofu made with calcium sulphate

The China Study Key Findings

  • Across 65 counties in rural China, animal protein consumption was the single dietary factor most consistently associated with chronic disease mortality rates
  • Plant protein intake was consistently inversely associated with chronic disease mortality
  • Counties with the lowest animal protein and highest plant food intake had the lowest rates of heart disease, diabetes, and several cancers
  • The threshold effect: even modest reductions in animal product consumption were associated with measurable reductions in disease risk
Note: The China Study (2004) has been critiqued for its ecological design (population rather than individual data). The WFPB dietary pattern it supports has since been validated in multiple individual-level clinical trials.

Sources

  • Campbell TC, Campbell TM. The China Study. BenBella Books, 2004.
  • Campbell TC. (2017). Cancer prevention and treatment by wholistic nutrition. Journal of Nature and Science, 3(9).
  • Fung TT, et al. (2001). Dietary patterns and the risk of coronary heart disease in women. Archives of Internal Medicine, 161(15), 1857-1862.
Anti-Inflammatory

Anti-Inflammatory Eating Plan

Source: Based on: Harvard Medical School / Dr. Andrew Weil / Published Peer-Reviewed Research

Chronic low-grade inflammation is now understood to be a driving mechanism behind cardiovascular disease, type 2 diabetes, neurodegenerative disease, several cancers, and accelerated biological ageing. This eating framework draws from Harvard Medical School guidelines, Dr. Andrew Weil's Anti-Inflammatory Diet, and the peer-reviewed literature on dietary inflammation.

Most Anti-Inflammatory Foods

  • Oily fish: salmon, mackerel, sardines, herring, anchovies (omega-3 EPA and DHA)
  • Dark leafy greens: kale, spinach, Swiss chard, broccoli (vitamin K, folate, carotenoids)
  • Berries: blueberries, strawberries, raspberries, cherries (anthocyanins)
  • Olive oil: extra virgin, cold-pressed only (oleocanthal, polyphenols)
  • Walnuts: highest omega-3 nut; also contains ellagic acid
  • Turmeric with black pepper: curcumin bioavailability increases 2000% with piperine
  • Ginger: gingerols inhibit COX-2 with similar mechanism to ibuprofen
  • Garlic: allicin and organosulphur compounds reduce NF-kB inflammatory signalling
  • Green tea: EGCG reduces C-reactive protein and inflammatory cytokines
  • Legumes: reduce interleukin-6 and TNF-alpha in clinical trials

Most Pro-Inflammatory Foods to Reduce

  • Ultra-processed foods: every daily serving associated with a 12% increase in inflammatory biomarker CRP (Monteiro et al., 2019)
  • Refined sugars and high-fructose corn syrup: drive hepatic inflammation and oxidative stress
  • Refined vegetable oils (sunflower, safflower, corn): high omega-6 linoleic acid shifts eicosanoid balance toward inflammation
  • Trans fats: banned in most countries but still present in some imported products; check labels for "partially hydrogenated"
  • Excessive red and processed meat: saturated fat and haem iron drive inflammatory pathways
  • Alcohol above 14 units per week: elevates CRP and promotes intestinal permeability

Dietary Inflammatory Index Score Targets

  • The Dietary Inflammatory Index (DII) was developed at the University of South Carolina to score overall diet inflammation potential
  • Each unit increase in DII is associated with 6% higher risk of all-cause mortality (Shivappa et al., 2017)
  • Key drivers of a low (anti-inflammatory) DII score: fibre, omega-3, vitamin C, vitamin E, beta-carotene, turmeric, ginger, garlic
  • Key drivers of a high (pro-inflammatory) DII score: total energy intake, saturated fat, trans fat, refined carbohydrate

Sources

  • Calder PC, et al. (2017). Health relevance of the modification of low grade inflammation in ageing (inflammageing) and the role of nutrition. Ageing Research Reviews, 40, 95-119.
  • Shivappa N, et al. (2017). Dietary inflammatory index and all-cause, cardiovascular and cancer mortality in a UK prospective cohort study. British Journal of Nutrition, 117(11), 1540-1547.
  • Monteiro CA, et al. (2019). Ultra-processed foods: what they are and how to identify them. Public Health Nutrition, 22(5), 936-941.
  • Weil A. Eating Well for Optimum Health. Knopf, 2000.
Longevity

The Longevity Diet: Blue Zones and Longevity Research

Source: Dan Buettner / National Geographic Blue Zones + Dr. Valter Longo / USC Longevity Institute

Synthesised from National Geographic Blue Zones research (Dan Buettner, 2008-2023) identifying the dietary patterns of the five longest-lived populations on Earth, combined with the ProLon Fasting Mimicking Diet research of Dr. Valter Longo at the University of Southern California.

Blue Zones Food Guidelines (Common to All Five Zones)

  • Plant predominance: 95 to 100% of calories from plant sources in the longest-lived populations
  • Beans as the cornerstone: black beans in Nicoya, lentils in Ikaria, soybeans in Okinawa, fava beans in Sardinia — average 1 cup per day across all zones
  • Caloric restriction: Okinawans practice "Hara Hachi Bu" (eat to 80% full); associated with lower BMI and longer telomere length
  • Meat: consumed rarely, an average of 5 times per month; typically pork or fish; portions smaller than a deck of cards
  • Fish: twice per week at most; primarily small fish low in mercury (sardines, anchovies, cod)
  • Dairy: minimal; primarily sheep or goat products; largely replaced by plant milks and nuts
  • Eggs: modest; average 2 to 4 per week
  • Sugar: minimal; no added sugar before the 20th century arrival of processed foods
  • Snacking: rare; only when genuinely hungry
  • Wine: 1 to 2 glasses per day with food and friends in four of five zones (not the Seventh-day Adventist Loma Linda community)

Dr. Valter Longo's Longevity Diet Principles

  • Predominantly vegan with the addition of small amounts of fish
  • Low but sufficient protein intake: 0.68 to 0.80g per kilogram of body weight per day
  • Minimise animal proteins, particularly from red meat and processed meat
  • Complex carbohydrates from legumes, whole grains, and vegetables as primary fuel
  • Healthy fats from olive oil, nuts, and fish
  • Time-restricted eating: ideally within a 12-hour window each day
  • Periodic fasting or a fasting-mimicking diet (5-day programme, 3 to 4 times per year)
  • Vitamin B12, vitamin D, and omega-3 supplementation recommended

Daily Targets for Longevity

  • Vegetables: minimum 5 servings; prioritise cruciferous and leafy greens
  • Legumes: at least 1 cup cooked per day
  • Whole grains: 2 to 3 servings; oats, barley, and brown rice preferred for beta-glucan content
  • Nuts: 30g daily; walnuts, almonds, or pistachios
  • Olive oil: 3 to 4 tablespoons daily as primary fat
  • Protein target: 50 to 70g daily for adults 65 and under; slightly higher after 65 to protect muscle

Sources

  • Buettner D. Blue Zones: Lessons for Living Longer from the People Who Have Lived the Longest. National Geographic Society, 2008.
  • Longo VD, Anderson RM. (2022). Nutrition, longevity and disease: from molecular mechanisms to interventions. Cell, 185(9), 1455-1470.
  • Longo VD, et al. (2015). Fasting: molecular mechanisms and clinical applications. Cell Metabolism, 19(2), 181-192.
  • Willcox BJ, et al. (2009). Caloric restriction, the traditional Okinawan diet, and healthy aging. Annals of the New York Academy of Sciences, 1114, 434-455.
Sleep

Evidence-Based Sleep Hygiene Cheat Sheet

Source: American Academy of Sleep Medicine / Matthew Walker PhD, UC Berkeley / NHS

Based on clinical guidelines from the American Academy of Sleep Medicine, the research of Matthew Walker (Why We Sleep, 2017), and NHS Sleep Council guidelines. Consistent sleep hygiene practices are associated with 21% lower all-cause mortality in adults (Liu et al., 2020, Nature and Science of Sleep).

Sleep Architecture Basics

  • Optimal sleep duration for adults: 7 to 9 hours per night (National Sleep Foundation)
  • A full sleep cycle is approximately 90 minutes; aim for 5 complete cycles per night
  • The first half of the night is dominated by deep NREM sleep (memory consolidation)
  • The second half is dominated by REM sleep (emotional processing, creativity)
  • Cutting sleep short by even 90 minutes removes the last full REM cycle

Daily Habits That Improve Sleep

  • Consistent wake time: wake at the same time every day, including weekends — this is the single most powerful sleep regulator
  • Morning light exposure: 10 to 30 minutes of natural light within one hour of waking resets the circadian clock
  • Exercise: 150 minutes of moderate weekly exercise reduces insomnia severity by 65% (Passos et al., 2011)
  • Avoid caffeine after 14:00 (2pm): caffeine has a half-life of 5 to 7 hours
  • Alcohol: no alcohol within 3 hours of bedtime; it suppresses REM sleep even in small amounts
  • Evening temperature: lower your bedroom to 18 to 19 degrees Celsius; body cooling initiates sleep
  • Blue light: avoid screens for 1 hour before bed, or use blue-light blocking glasses
  • Wind-down routine: 20 to 30 minutes of calm activity before bed (reading, light stretching, bath)

Sleep and Nutrition

  • Tryptophan-rich foods in the evening support melatonin synthesis: turkey, pumpkin seeds, almonds, eggs
  • Magnesium: low dietary magnesium is associated with poorer sleep quality; sources include dark chocolate, almonds, spinach, and avocado
  • Avoid large meals within 2 hours of bedtime
  • Kiwi fruit: two kiwis one hour before bed improved sleep onset, duration, and quality in a 4-week trial (Lin et al., 2011)
  • Tart cherry juice: 240ml twice daily shown to increase sleep duration by 84 minutes (Howatson et al., 2012)

Sources

  • Walker M. Why We Sleep: Unlocking the Power of Sleep and Dreams. Scribner, 2017.
  • Liu Y, et al. (2020). Sleep duration and all-cause mortality: a systematic review and meta-analysis. Sleep Medicine Reviews, 47, 101409.
  • Howatson G, et al. (2012). Effect of tart cherry juice on melatonin levels and enhanced sleep quality. European Journal of Nutrition, 51(8), 909-916.
  • Lin HH, et al. (2011). Effect of kiwifruit consumption on sleep quality in adults with sleep problems. Asia Pacific Journal of Clinical Nutrition, 20(2), 169-174.
Heart Health

DASH Diet: Dietary Approaches to Stop Hypertension

Source: National Heart, Lung, and Blood Institute (NHLBI) / NIH

The DASH diet was developed through a landmark NIH-funded clinical trial (Appel et al., 1997, New England Journal of Medicine) specifically to lower blood pressure without medication. It remains one of the most thoroughly validated dietary patterns in clinical nutrition, with consistent evidence across over 40 randomised controlled trials.

Daily Targets on DASH (2,000 kcal reference)

  • Vegetables: 4 to 5 servings daily (1 serving = 180g raw leafy greens or 90g cooked vegetables)
  • Fruits: 4 to 5 servings daily; prioritise potassium-rich choices: bananas, oranges, apricots
  • Whole grains: 6 to 8 servings daily; oats, brown rice, wholemeal bread, and wholegrain pasta
  • Fat-free or low-fat dairy: 2 to 3 servings daily (calcium and potassium source)
  • Lean meat, fish, or poultry: 6 or fewer servings daily; 85g cooked per serving
  • Nuts, seeds, and legumes: 4 to 5 servings per week (not per day)
  • Fats and oils: 2 to 3 servings daily; use olive or rapeseed oil
  • Sweets and added sugars: 5 or fewer servings per week

Sodium Targets

  • Standard DASH: 2,300mg sodium per day (around 1 teaspoon of salt)
  • Lower-sodium DASH: 1,500mg per day for greater blood pressure reduction
  • The DASH-Sodium trial (Sacks et al., 2001) found that combining DASH with the 1,500mg target reduced systolic blood pressure by 8 to 14 mmHg
  • Food label check: aim for less than 600mg sodium per meal and less than 200mg per snack

Clinical Outcomes

  • DASH trial (1997): systolic BP fell 11.4 mmHg in hypertensive participants vs control diet
  • Diastolic BP reduction: 5.5 mmHg in hypertensive participants; comparable to single drug therapy
  • LDL cholesterol reduction: 7 to 10% in multiple trials
  • Associated with 20% lower risk of cardiovascular disease in the Nurses' Health Study (Fung et al., 2008)
  • Reduced risk of kidney stones, type 2 diabetes, and colorectal cancer in large prospective studies

Sources

  • Appel LJ, et al. (1997). A clinical trial of the effects of dietary patterns on blood pressure. New England Journal of Medicine, 336(16), 1117-1124.
  • Sacks FM, et al. (2001). Effects on blood pressure of reduced dietary sodium and the Dietary Approaches to Stop Hypertension (DASH) diet. New England Journal of Medicine, 344(1), 3-10.
  • Fung TT, et al. (2008). Adherence to a DASH-style diet and risk of coronary heart disease and stroke in women. Archives of Internal Medicine, 168(7), 713-720.
Longevity

MIND Diet for Brain Health and Dementia Prevention

Source: Dr. Martha Clare Morris / Rush University Medical Center, Chicago

The MIND diet (Mediterranean-DASH Intervention for Neurodegenerative Delay) was developed at Rush University and published in the journal Alzheimer's and Dementia (2015). In a cohort of 923 older adults followed for 4.5 years, the MIND diet was associated with a 53% reduction in the rate of Alzheimer's disease in those with high adherence.

The 10 Brain-Protective Food Groups (Eat Often)

  • Green leafy vegetables: 6 or more servings per week (kale, spinach, Swiss chard, rocket)
  • Other vegetables: at least 1 serving daily
  • Berries: 2 or more servings per week (especially blueberries and strawberries)
  • Nuts: 5 or more servings per week; any variety, unsalted
  • Olive oil: use as primary cooking fat
  • Whole grains: 3 or more servings daily (oats, wholemeal bread, brown rice, quinoa)
  • Fish: at least once per week; oily fish preferred
  • Beans: at least 4 meals per week (any legume)
  • Poultry: at least 2 servings per week
  • Wine: up to 1 glass daily for those who drink (optional)

The 5 Food Groups to Limit

  • Red meat: fewer than 4 servings per week
  • Butter and margarine: less than 1 tablespoon daily
  • Cheese: fewer than 1 serving per week
  • Pastries and sweets: fewer than 5 servings per week
  • Fried or fast food: less than 1 serving per week

The Science Behind the MIND Diet

  • Blueberries: flavonoids and pterostilbene cross the blood-brain barrier and reduce oxidative stress in hippocampal neurons
  • Green leafy vegetables: folate, vitamin K, and lutein are associated with slower cognitive decline in the RUSH Memory and Aging Project
  • Olive oil: oleocanthal inhibits the aggregation of tau proteins and amyloid-beta, both implicated in Alzheimer's pathology
  • The MIND diet outperformed both the Mediterranean and DASH diets in the Rush cohort for cognitive outcomes

Sources

  • Morris MC, et al. (2015). MIND diet associated with reduced incidence of Alzheimer's disease. Alzheimer's and Dementia, 11(9), 1007-1014.
  • Morris MC, et al. (2015). MIND diet slows cognitive decline with aging. Alzheimer's and Dementia, 11(9), 1015-1022.
  • Devore EE, et al. (2012). Dietary intakes of berries and flavonoids in relation to cognitive decline. Annals of Neurology, 72(1), 135-143.
Heart Health

New Nordic Diet: Copenhagen University Evidence-Based Protocol

Source: University of Copenhagen / Nordic Council of Ministers

The New Nordic Diet was developed by researchers at the University of Copenhagen in collaboration with Michelin-starred chef Claus Meyer. Published in the Journal of Internal Medicine (2012), the OPUS Supermarked study showed the Nordic diet improved cardiovascular risk factors, reduced abdominal fat, and improved cholesterol profiles in a randomised controlled trial of 147 participants.

Core Nordic Diet Principles

  • More calories from plant foods and fewer from meat — especially processed and red meat
  • More foods from the sea and lakes: oily fish twice weekly (mackerel, herring, trout, salmon)
  • More foods from the wild: game, wild berries, foraged mushrooms, and seaweed
  • More organic produce where possible; seasonal eating aligned with Nordic growing seasons
  • Less food overall: portions sized to satiation rather than habit
  • More home cooking and less use of processed and convenience foods

Key Nordic Foods

  • Rye bread: dense, fermented, high-fibre rye crispbread or sourdough rye
  • Root vegetables: swede, parsnip, celeriac, carrots, and beetroot
  • Cruciferous vegetables: cauliflower, kale, Brussels sprouts, and white cabbage
  • Berries: lingonberry, cloudberry, bilberry, sea buckthorn, and blackcurrant
  • Rapeseed (canola) oil: primary cooking fat; higher in omega-3 than olive oil
  • Dairy: fermented dairy products such as skyr, kefir, and soured milk
  • Legumes: peas, lentils, and fava beans as protein foundation

Clinical Evidence

  • OPUS study (Adamsson et al., 2011, Journal of Internal Medicine): 18.6% reduction in total cholesterol vs Western diet control
  • Systolic blood pressure reduced by 6.7 mmHg on the New Nordic Diet in a 26-week trial
  • Body weight reduction of 4.7 kg vs 1.5 kg in control group over 26 weeks
  • Nordic diet score associated with 8% lower all-cause mortality in the Danish Diet, Cancer and Health cohort (Olsen et al., 2011)

Sources

  • Adamsson V, et al. (2011). Effects of a healthy Nordic diet on cardiovascular risk factors in hypercholesterolaemic subjects: a randomized controlled trial (NORDIET). Journal of Internal Medicine, 269(2), 150-159.
  • Olsen A, et al. (2011). Healthy aspects of the Nordic diet are related to lower total mortality. Journal of Nutrition, 141(4), 639-644.
  • Nordic Nutrition Recommendations 2023. Nordic Council of Ministers, 2023.
Heart Health

Portfolio Diet for Cholesterol Reduction

Source: Dr. David Jenkins / University of Toronto / St. Michael's Hospital

The Portfolio Diet was developed by Dr. David Jenkins at the University of Toronto and published in JAMA (2003). The diet combines four specific food components shown independently to reduce LDL cholesterol and demonstrates additive effects when combined. In a meta-analysis of 7 trials, it reduced LDL cholesterol by 17%, comparable to a first-generation statin drug.

The Four Portfolio Components

  • Soy protein: 50g daily from soy milk, tofu, tempeh, or edamame (replaces animal protein)
  • Viscous soluble fibre: 20g daily from oats, barley, psyllium, aubergine, and okra
  • Plant sterols: 2g daily from sterol-enriched foods or supplements (found in some margarines and milks)
  • Nuts: 42g daily of almonds, walnuts, or pecans (a small handful)

How to Build a Portfolio Day

  • Breakfast: oat porridge made with soy milk, topped with almonds and ground flaxseed
  • Lunch: lentil soup with barley bread, or tofu stir-fry over brown rice
  • Dinner: bean and vegetable curry, or tempeh with roasted vegetables
  • Snacks: small handful of walnuts; sterol-enriched yoghurt
  • Daily fibre target: aim for 40 to 50g total dietary fibre (most adults consume 18g)

Clinical Evidence

  • Original JAMA trial (Jenkins et al., 2003): 28.6% LDL reduction vs 30.9% from lovastatin — statistically equivalent
  • Portfolio meta-analysis (Jenkins et al., 2015, Progress in Cardiovascular Diseases): 17% LDL reduction across 7 randomised trials
  • Each component contributes independently: combining all four produces an additive cholesterol-lowering effect
  • Associated with reduced C-reactive protein (inflammatory marker) and improved endothelial function

Sources

  • Jenkins DJ, et al. (2003). Effects of a dietary portfolio of cholesterol-lowering foods vs lovastatin on serum lipids and C-reactive protein. JAMA, 290(4), 502-510.
  • Jenkins DJ, et al. (2015). The effect of a dietary portfolio compared to a DASH-type diet on blood pressure. Nutrients, 7(2), 997-1015.
  • Chiavaroli L, et al. (2018). Portfolio dietary pattern and cardiovascular disease: a systematic review and meta-analysis of controlled trials. Progress in Cardiovascular Diseases, 61(1), 43-53.
Weight Management

Volumetrics: Eating More, Weighing Less

Source: Dr. Barbara Rolls / Pennsylvania State University

Developed by Professor Barbara Rolls, Director of the Laboratory for the Study of Human Ingestive Behaviour at Penn State, Volumetrics is based on over 30 years of research into energy density and satiety. Unlike calorie restriction, Volumetrics teaches people to eat a higher volume of lower energy-dense foods, maintaining satiety while reducing caloric intake.

The Four Food Categories by Energy Density

  • Category 1 (very low density, less than 0.6 kcal/g): eat freely — fruits, non-starchy vegetables, broth-based soups, fat-free milk
  • Category 2 (low density, 0.6 to 1.5 kcal/g): eat as the bulk of meals — whole grains, legumes, lean meats, low-fat dairy
  • Category 3 (medium density, 1.5 to 4 kcal/g): eat in moderate portions — meats, cheese, bread, dried fruits
  • Category 4 (high density, more than 4 kcal/g): eat in small amounts — crackers, crisps, chocolate, butter, nuts, oils

Practical Volumetrics Strategies

  • Start each meal with a broth-based soup or large salad with low-fat dressing — this reduces total meal intake by 100 to 200 kcal
  • Substitute fruit for high-density snacks; the water content in fruit adds volume without calories
  • Increase vegetable content in all dishes: double the vegetables in pasta, stir-fry, and casseroles
  • Choose whole fruit over dried fruit: 100g of grapes contains 67 kcal; 100g of raisins contains 299 kcal
  • Replace dense foods with lower-density alternatives: cauliflower rice, courgette noodles, butternut squash pasta
  • Eat slowly and without distraction: it takes 20 minutes for satiety signals to reach the brain

Evidence

  • Rolls BJ, et al. (2004): subjects served large portions of a low energy-dense soup before a meal consumed 20% fewer calories at that meal (Journal of Nutrition)
  • Ello-Martin JA, et al. (2007, American Journal of Clinical Nutrition): substituting lower energy-dense foods led to 33% greater weight loss than fat reduction alone over 1 year
  • Energy density is a stronger predictor of food intake than portion size alone (Bell et al., 1998)

Sources

  • Rolls BJ. Volumetrics: Feel Full on Fewer Calories. HarperCollins, 2000.
  • Rolls BJ, et al. (2004). Salad and satiety: energy density and portion size of a first-course salad affect energy intake at lunch. Journal of the American Dietetic Association, 104(10), 1570-1576.
  • Ello-Martin JA, et al. (2007). Dietary energy density in the treatment of obesity: a year-long trial comparing two weight-loss diets. American Journal of Clinical Nutrition, 85(6), 1465-1477.
Longevity

Time-Restricted Eating: Satchin Panda's Circadian Nutrition Protocol

Source: Dr. Satchin Panda / Salk Institute for Biological Studies

Based on the circadian biology research of Dr. Satchin Panda at the Salk Institute, whose studies have shown that aligning eating with the body's 24-hour circadian clock improves metabolic health independent of caloric intake. His landmark mouse studies (2012, Cell Metabolism) and subsequent human trials show that a consistent eating window of 8 to 10 hours produces measurable metabolic benefits.

Core Principles of Time-Restricted Eating

  • Limit all caloric intake to a consistent 8 to 12 hour window each day
  • The eating window should start no earlier than 1 hour after waking
  • The eating window should close at least 2 to 3 hours before sleep
  • Black coffee, plain tea, and water do not break the fast
  • Consistency is more important than the exact window: the same start and stop time daily is the goal
  • No food intake in the dark hours; the digestive system has a distinct circadian rhythm

Practical Window Options

  • 8-hour window (16:8): first meal at 9am, last meal at 5pm — suitable for most metabolic goals
  • 10-hour window: first meal at 8am, last meal at 6pm — optimal for longevity per Panda's research
  • 12-hour window: first meal at 7am, last meal at 7pm — minimum threshold for circadian benefit
  • Early eating window (6am to 2pm or 7am to 3pm): greatest metabolic benefit; aligns with insulin sensitivity peaks
  • Avoid the common pattern of eating from 7am to 10pm (15-hour window) — associated with metabolic dysfunction

Metabolic Benefits in Human Trials

  • Sutton et al. (2018, Cell Metabolism): 5-week early TRE (6-hour window) reduced insulin levels, blood pressure, and oxidative stress without calorie restriction
  • Wilkinson et al. (2020, Cell Metabolism): 10-hour TRE for 12 weeks in metabolic syndrome patients reduced body weight 3%, HbA1c 5%, and LDL cholesterol 11%
  • Gabel et al. (2018, Nutrition and Healthy Aging): 8-hour TRE (10am to 6pm) reduced caloric intake by 341 kcal/day spontaneously, with no calorie counting
  • Improved gut microbiome diversity measured after 3 months of TRE in multiple studies
Note: TRE is not suitable for people with a history of eating disorders, during pregnancy, or for those on insulin or certain blood-glucose-lowering medications without medical supervision.

Sources

  • Sutton EF, et al. (2018). Early time-restricted feeding improves insulin sensitivity, blood pressure, and oxidative stress even without weight loss in men with prediabetes. Cell Metabolism, 27(6), 1212-1221.
  • Wilkinson MJ, et al. (2020). Ten-hour time-restricted eating reduces weight, blood pressure, and atherogenic lipids in patients with metabolic syndrome. Cell Metabolism, 31(1), 92-104.
  • Panda S. (2016). Circadian physiology of metabolism. Science, 354(6315), 1008-1015.
Weight Management

5:2 Intermittent Fasting Protocol

Source: Dr. Michael Mosley / Dr. Mark Mattson, National Institute on Ageing

The 5:2 protocol involves eating normally for five days and restricting calories to 500 to 600 kcal on two non-consecutive days per week. Popularised by Dr. Michael Mosley based on the work of Dr. Mark Mattson at the National Institute on Ageing, it activates metabolic switching from glucose to ketone bodies on fasting days, with measurable effects on insulin sensitivity, inflammation, and brain-derived neurotrophic factor (BDNF).

The Protocol

  • Normal eating days (5 days): eat your usual diet without restriction
  • Fasting days (2 non-consecutive days): women 500 kcal; men 600 kcal
  • Choose two days that are not back-to-back: Monday and Thursday, or Tuesday and Friday
  • On fasting days: spread calories across two small meals or one meal if preferred
  • Hydration: unlimited water, black coffee, and plain tea on fasting days
  • Electrolytes: a pinch of salt in water on fasting days reduces headaches and fatigue

What to Eat on Fasting Days (500-600 kcal)

  • Focus on high-protein, high-fibre foods to maximise satiety on limited calories
  • Option A (two meals): breakfast of 2 boiled eggs with wilted spinach (175 kcal); dinner of grilled white fish with steamed vegetables (320 kcal)
  • Option B (one meal): large salad with grilled chicken breast, roasted vegetables, and a small portion of lentils (480 kcal)
  • Avoid refined carbohydrates on fasting days: they spike insulin and undermine metabolic switching
  • Bone broth: 1 to 2 cups between meals provides minerals and reduces hunger

Evidence for 5:2

  • Harvie MN, et al. (2011, International Journal of Obesity): 5:2 produced equivalent weight loss to daily calorie restriction over 6 months, with greater improvement in insulin sensitivity
  • Mattson MP, et al. (2017, Ageing Research Reviews): intermittent fasting activates autophagy, reduces oxidative stress markers, and increases BDNF
  • Compared to continuous restriction, 5:2 produces higher compliance rates in 12-month follow-up studies
  • CALERIE study data suggest periodic fasting, even brief, reduces IGF-1 — a key longevity-associated pathway
Note: Not recommended for those who are underweight, pregnant, breastfeeding, have type 1 diabetes, or have a history of eating disorders. Those on blood-glucose-lowering medications should consult their GP before starting.

Sources

  • Harvie MN, et al. (2011). The effects of intermittent or continuous energy restriction on weight loss and metabolic disease risk markers. International Journal of Obesity, 35(5), 714-727.
  • Mattson MP, et al. (2017). Intermittent metabolic switching, neuroplasticity and brain health. Nature Reviews Neuroscience, 18(2), 63-80.
  • Mosley M, Spencer M. The Fast Diet. Short Books, 2013.
Weight Management

Newcastle 800-Calorie Diabetes Reversal Diet

Source: Professor Roy Taylor / Newcastle University / DiRECT Trial

Professor Roy Taylor at Newcastle University demonstrated for the first time that type 2 diabetes is reversible through substantial weight loss achieved with an 800-calorie formula diet. The landmark DiRECT trial (Lean et al., 2018, Lancet) showed 46% of participants achieved remission of type 2 diabetes at 12 months — defined as HbA1c below 48 mmol/mol with no medication.

The Protocol

  • Total daily intake: 800 kcal for 12 weeks (medical supervision required for those on diabetes medication)
  • Primary method: low-calorie formula meal replacements (soups and shakes) providing complete nutrition
  • Alternative (Leeds approach): 800 kcal from real food — 3 small protein-centred meals
  • Maintenance phase after 12 weeks: gradual reintroduction of food with structured long-term support
  • Weight loss target: 10 to 15 kg to achieve sufficient liver and pancreatic fat reduction for remission

The Science Behind Why It Works

  • Type 2 diabetes is driven by excess fat accumulation in the liver and pancreas — not simply blood glucose
  • Liver fat impairs insulin signalling; pancreatic fat suppresses beta cell function
  • Losing 10 to 15 kg reduces liver fat by 30 to 35% and pancreatic fat by 1.5 to 2g
  • This restores first-phase insulin secretion — the critical response to meals — which had been absent
  • MRI studies show that at 5 years, those who maintained weight loss had continued diabetes remission

DiRECT Trial Results (Lancet, 2018)

  • 46% of participants in remission at 12 months vs 4% in standard care group
  • 24% in remission at 2 years (Lean et al., 2019, Lancet Diabetes & Endocrinology)
  • Average weight loss of 10 kg in the intervention group at 12 months
  • Of those who lost more than 15 kg, 86% achieved remission — the strongest predictor of success
  • Significant reductions in blood pressure, cholesterol, and liver function markers
Note: This protocol requires medical supervision for anyone on blood-glucose-lowering medication or insulin. Medication doses must be reduced as blood glucose falls. Do not attempt unsupervised.

Sources

  • Lean ME, et al. (2018). Primary care-led weight management for remission of type 2 diabetes (DiRECT): an open-label, cluster-randomised trial. Lancet, 391(10120), 541-551.
  • Lean ME, et al. (2019). Durability of a primary care-led weight-management intervention for remission of type 2 diabetes: 2-year results of the DiRECT open-label, cluster-randomised trial. Lancet Diabetes and Endocrinology, 7(5), 344-355.
  • Taylor R. (2013). Type 2 diabetes: etiology and reversibility. Diabetes Care, 36(4), 1047-1055.
Anti-Inflammatory

Low-FODMAP Diet for IBS and Gut Health

Source: Professor Peter Gibson / Monash University, Melbourne

The Low-FODMAP diet was developed by Professor Peter Gibson and Dr. Susan Shepherd at Monash University and has become the most evidence-based dietary intervention for Irritable Bowel Syndrome (IBS). FODMAP stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols — short-chain carbohydrates that ferment in the gut and produce gas, bloating, and pain in those with IBS.

High-FODMAP Foods to Restrict in Phase 1

  • Oligosaccharides (fructans): wheat, rye, onion, garlic, artichokes, leeks
  • Oligosaccharides (GOS): legumes, chickpeas, lentils (small portions tolerated by some)
  • Lactose: cow's milk, soft cheese, yoghurt, ice cream
  • Excess fructose: apples, pears, mangoes, honey, high-fructose corn syrup
  • Polyols: stone fruits (peaches, plums, cherries), avocado in large amounts, cauliflower, mushrooms

Low-FODMAP Alternatives

  • Grains: rice, oats, gluten-free bread and pasta, corn, quinoa
  • Protein: all plain meats, fish, eggs, tofu, and tempeh
  • Dairy alternatives: lactose-free milk, hard aged cheeses, almond milk
  • Vegetables: carrots, courgette, cucumber, aubergine, green beans, leafy greens
  • Fruits: strawberries, blueberries, oranges, kiwi fruit, grapes (in moderate portions)
  • Flavouring: garlic-infused oil is low FODMAP (fructans do not dissolve into oil)

The Three-Phase FODMAP Protocol

  • Phase 1 (Restriction, 2 to 6 weeks): eliminate all high-FODMAP foods to achieve symptom control
  • Phase 2 (Reintroduction, 8 to 12 weeks): systematically reintroduce one FODMAP subgroup at a time to identify personal triggers
  • Phase 3 (Personalisation): long-term diet tailored to individual tolerances — most people can reintroduce several food groups
  • The goal is a diet as varied as possible while avoiding known personal triggers

Clinical Evidence

  • Gibson PR, et al. (2014, Gastroenterology): 70% of IBS patients had significant symptom reduction on the Low-FODMAP diet vs 38% on standard dietary advice
  • Sustained response at 12 months with personalised dietary approach
  • Cochrane systematic review (2018): moderate-quality evidence supports Low-FODMAP for global IBS symptom improvement
Note: The Low-FODMAP diet should ideally be undertaken with the support of a registered dietitian trained in FODMAP methodology. It is not recommended as a long-term elimination diet; the reintroduction phase is essential.

Sources

  • Gibson PR, Shepherd SJ. (2010). Evidence-based dietary management of functional gastrointestinal symptoms: the FODMAP approach. Journal of Gastroenterology and Hepatology, 25(2), 252-258.
  • Halmos EP, et al. (2014). A diet low in FODMAPs reduces symptoms of irritable bowel syndrome. Gastroenterology, 146(1), 67-75.
  • Dionne J, et al. (2018). A systematic review and meta-analysis evaluating the efficacy of a gluten-free diet and a low FODMAPs diet in treating symptoms of irritable bowel syndrome. American Journal of Gastroenterology, 113(9), 1290-1300.
Anti-Inflammatory

Ancestral Nutrition: The Paleo Diet Framework

Source: Dr. Loren Cordain / Colorado State University

The Paleo dietary framework was developed by Dr. Loren Cordain, Professor of Health and Exercise Science at Colorado State University, and published in the European Journal of Clinical Nutrition (2002). It proposes that the optimal human diet is based on the foods available to pre-agricultural humans: lean meats, fish, vegetables, fruits, nuts, and seeds — excluding grains, legumes, dairy, and processed foods.

Foods to Eat

  • Lean meats: grass-fed beef, venison, bison, lamb, and free-range poultry
  • Fish and seafood: wild-caught oily fish preferred; aim for 2 to 3 servings per week
  • Eggs: pasture-raised preferred; no upper limit in the ancestral framework
  • Vegetables: all types and colours; root vegetables in moderate amounts
  • Fruits: all types; prioritise lower-sugar berries, and tropical fruits in moderation
  • Nuts and seeds: almonds, walnuts, macadamias, pecans, sunflower seeds, pumpkin seeds
  • Healthy fats: avocado, olive oil, coconut oil, ghee from grass-fed cattle

Foods to Exclude

  • All cereal grains: wheat, rice, oats, corn, barley, rye — all forms including bread and pasta
  • All legumes: beans, lentils, peas, peanuts, and soy products
  • Dairy products: milk, cheese, yoghurt, butter (some strict versions exclude all dairy)
  • Refined sugars and processed foods of any kind
  • Vegetable and seed oils: canola, sunflower, safflower, soybean, and corn oil
  • Salt and high-sodium condiments

Evidence and Clinical Outcomes

  • Jönsson et al. (2009, Cardiovascular Diabetology): Paleo diet produced greater improvements in waist circumference, triglycerides, and diastolic blood pressure than the recommended Swedish diet in type 2 diabetes patients
  • Masharani et al. (2015, European Journal of Clinical Nutrition): Paleo diet reduced fasting glucose, HbA1c, and triglycerides significantly more than standard diabetes diet in a 2-week crossover trial
  • Frassetto et al. (2009, European Journal of Clinical Nutrition): even a 10-day Paleo diet reduced blood pressure, cholesterol, and insulin
Note: The Paleo diet is higher in saturated fat than most clinical guidelines recommend. The evidence base remains smaller than for Mediterranean or plant-based diets, and long-term data are limited. Those with kidney disease should be cautious about high protein intake.

Sources

  • Cordain L, et al. (2002). Origins and evolution of the Western diet: health implications for the 21st century. American Journal of Clinical Nutrition, 81(2), 341-354.
  • Jönsson T, et al. (2009). Beneficial effects of a Paleolithic diet on cardiovascular risk factors in type 2 diabetes. Cardiovascular Diabetology, 8, 35.
  • Masharani U, et al. (2015). Metabolic and physiologic effects from consuming a hunter-gatherer (Paleolithic)-type diet in type 2 diabetes. European Journal of Clinical Nutrition, 69(8), 944-948.
Heart Health

Pritikin Programme: Heart Disease Reversal Diet

Source: Nathan Pritikin / Pritikin Longevity Center, Miami

Developed by Nathan Pritikin in the 1970s and refined through 40 years of research at the Pritikin Longevity Center, the Pritikin Programme combines a very low-fat, high-fibre diet with daily aerobic exercise. Peer-reviewed studies show consistent improvements in blood pressure, LDL cholesterol, and triglycerides, with reversals of coronary artery disease comparable to the Ornish programme.

The Pritikin Diet Principles

  • Total fat: less than 10% of total calories (strict approach) to 15 to 20% (moderate approach)
  • Fibre: 35 to 45g per day from whole plant foods
  • Protein: 15 to 20% of calories; primarily from plant sources and lean fish
  • Carbohydrates: 70 to 75% of calories; all from whole, unrefined sources
  • Sodium: less than 1,500mg per day
  • No refined or processed carbohydrates, white flour, white rice, or added sugars
  • No oils or added fats; fat from whole foods only (nuts, seeds, avocado in small amounts)

Daily Food Targets

  • Vegetables: at least 5 servings; ideally at every meal
  • Fruits: 3 to 5 servings; whole fruit preferred over juice
  • Whole grains: 5 or more servings; oats, barley, brown rice, and wholemeal bread
  • Legumes: 1 to 2 cups daily
  • Fish: 2 to 3 servings per week of oily fish or other lean fish
  • Limit: lean poultry to 3 servings per week; fat-free dairy to 2 servings per day
  • Avoid: all red meat, full-fat dairy, oils, refined foods, and alcohol

Clinical Results from Pritikin Center Data

  • LDL cholesterol reduction: average 23% reduction in 1 to 3 weeks at the Pritikin Center
  • Triglycerides: 33% average reduction over the programme
  • Systolic blood pressure: 9 mmHg average reduction
  • Fasting blood glucose: significant reductions in pre-diabetic and diabetic participants
  • Roberts CK, et al. (2006, American Journal of Cardiology): 12-day Pritikin programme reversed the metabolic syndrome in 50% of participants

Sources

  • Roberts CK, et al. (2006). Effect of a short-term diet and exercise intervention on metabolic syndrome. Journal of Applied Physiology, 100(5), 1657-1665.
  • Barnard RJ, et al. (1992). Response of non-insulin-dependent diabetic patients to an intensive program of diet and exercise. Diabetes Care, 15(1), 96-101.
  • Barnard RJ, et al. (1983). Long-term use of a high-complex-carbohydrate, high-fiber, low-fat diet and exercise in the treatment of NIDDM patients. Diabetes Care, 6(3), 268-273.
Anti-Inflammatory

The Zone Diet: Anti-Inflammatory Macronutrient Balance

Source: Dr. Barry Sears / Harvard Medical School

Developed by Dr. Barry Sears, a former research scientist at the Boston University School of Medicine, the Zone Diet balances macronutrients at a 40/30/30 ratio of carbohydrates, protein, and fat at every meal to control insulin and produce anti-inflammatory eicosanoids. Published in peer-reviewed journals and validated in studies at Harvard Medical School.

The 40-30-30 Framework

  • Every meal and snack: 40% calories from carbohydrates, 30% from protein, 30% from fat
  • Women: 3 meals and 2 snacks daily at 300 kcal per meal and 100 kcal per snack (1,100 kcal)
  • Men: 4 meals and 2 snacks at 400 kcal per meal and 100 kcal per snack (1,800 kcal)
  • Carbohydrates should be low-glycaemic load; prioritise vegetables and legumes over grains and sugars
  • Protein at every meal activates glucagon release and offsets insulin response
  • Fat should be primarily mono-unsaturated (olive oil, avocado, almonds)

The Hand-Eye Method

  • Protein: a portion the size and thickness of your palm (about 85g for women, 115g for men)
  • Carbohydrates: fill the rest of the plate with colourful vegetables (2:1 volume ratio to protein)
  • Fat: a small drizzle of olive oil or a few slices of avocado
  • If any corner of the plate is empty, add more low-density vegetables
  • Every meal should produce alertness without hunger for 4 to 5 hours

Clinical Evidence

  • Ludwig DS, et al. (2002, JAMA): Zone-type diet with 40% carbohydrate reduced postprandial hunger compared to high-carbohydrate low-fat diet
  • Sears B (2015, Progress in Cardiovascular Diseases): the Zone diet reduces markers of cellular inflammation measured by AA/EPA ratio and CRP
  • Compared to Atkins, Ornish, and Weight Watchers over 12 months (Dansinger et al., 2005, JAMA): all four produced similar weight loss; adherence was the primary predictor

Sources

  • Sears B. The Zone. ReganBooks, 1995.
  • Dansinger ML, et al. (2005). Comparison of the Atkins, Ornish, Weight Watchers, and Zone diets for weight loss and heart disease risk reduction. JAMA, 293(1), 43-53.
  • Ludwig DS, et al. (2002). Dietary fiber, weight gain, and cardiovascular disease risk factors in young adults. JAMA, 282(16), 1539-1546.
Longevity

ProLon Fasting Mimicking Diet: Periodic Fasting Protocol

Source: Dr. Valter Longo / University of Southern California Longevity Institute

The Fasting Mimicking Diet (FMD) was developed by Dr. Valter Longo at the USC Longevity Institute and published in Cell Metabolism (2015). A 5-day cycle of reduced caloric intake (800 kcal day 1; 500 kcal days 2 to 5) mimics the fasting state while allowing the body to receive essential nutrients. Randomised trials show it reduces risk factors for ageing, diabetes, cardiovascular disease, and cancer.

The 5-Day FMD Protocol

  • Day 1: 1,090 kcal (10% protein, 56% fat, 34% carbohydrate)
  • Days 2 to 5: 725 kcal per day (9% protein, 44% fat, 47% carbohydrate)
  • Foods: plant-based soups, olives, kale crackers, nut bars, and herbal teas (ProLon kit)
  • Frequency: once per month for 3 months for therapeutic effect; then once per quarter for maintenance
  • Water and herbal tea: unlimited throughout
  • No coffee, alcohol, or strenuous exercise during the 5-day window

Biological Mechanisms

  • Reduces IGF-1 (insulin-like growth factor 1) by 30 to 45% — a key longevity pathway
  • Activates autophagy: cellular self-cleaning that removes damaged proteins and organelles
  • Reduces inflammatory markers including CRP, IL-6, and TNF-alpha
  • Triggers stem cell-based regeneration of immune cells, demonstrated in mouse models
  • Reduces visceral fat preferentially over lean mass

Clinical Trial Results (JAMA Internal Medicine, 2017)

  • Brandhorst et al. (2017): 3 cycles of FMD reduced risk factors for cancer, diabetes, heart disease, and ageing
  • Reduced BMI by 0.45 kg/m squared, waist circumference by 4 cm, blood pressure by 4.5 mmHg systolic
  • Reduced IGF-1, CRP, and fasting glucose; increased lean mass percentage relative to fat mass
  • High adherence: 96.6% completed all 3 cycles with no serious adverse events
Note: The FMD is not recommended for people who are underweight (BMI below 18.5), pregnant, breastfeeding, have type 1 diabetes, or are on immunosuppressant drugs. Medical supervision is advised for those on other medications.

Sources

  • Brandhorst S, et al. (2015). A periodic diet that mimics fasting promotes multi-system regeneration, enhanced cognitive performance, and healthspan. Cell Metabolism, 22(1), 86-99.
  • Wei M, et al. (2017). Fasting-mimicking diet and markers/risk factors for aging, diabetes, cancer, and cardiovascular disease. Science Translational Medicine, 9(377), eaai8700.
  • Longo VD, Mattson MP. (2014). Fasting: molecular mechanisms and clinical applications. Cell Metabolism, 19(2), 181-192.
Longevity

Harvard Healthy Eating Plate

Source: Harvard T.H. Chan School of Public Health / Walter Willett MD

Created by nutrition experts at Harvard T.H. Chan School of Public Health to address significant omissions in the USDA MyPlate, the Harvard Healthy Eating Plate is grounded in the best available nutrition science and is free from the lobbying influence that has affected government dietary guidelines. It reflects evidence gathered from over 30 years of study at Harvard, including the Nurses' Health Study and the Health Professionals Follow-up Study.

The Plate Composition

  • Half the plate: vegetables and fruits — more vegetables than fruit; prioritise variety and colour
  • Quarter of the plate: whole grains — brown rice, barley, quinoa, wholemeal bread and pasta
  • Quarter of the plate: healthy protein — fish, poultry, beans, and nuts; limit red meat; avoid processed meat
  • Use healthy plant oils: olive, rapeseed, and sunflower; avoid partially hydrogenated oils
  • Drink water, coffee, and tea; limit milk to 1 to 2 servings daily; limit juice; avoid sugary drinks
  • Stay active: movement is as important as what is on the plate

Key Differences From Government Guidelines

  • Harvard specifically limits dairy to 1 to 2 servings daily — not the 3 servings recommended in US guidelines
  • Harvard places potatoes in the whole grains category, not vegetables, due to high glycaemic impact
  • Harvard specifically avoids "low-fat" language on dairy — full evidence does not support low-fat dairy superiority
  • Processed red meat (bacon, sausage, hot dogs) is explicitly flagged as a cancer risk
  • Red meat is limited rather than encouraged as a primary protein source

Evidence-Based Impact

  • The Alternate Healthy Eating Index (AHEI) based on Harvard guidelines is associated with 25% lower risk of major chronic disease (Chiuve et al., 2012, Journal of Nutrition)
  • Following the AHEI was associated with an 8-year difference in biological age markers in the Nurses' Health Study
  • Each 10-point increase in AHEI score associated with significant reductions in cardiovascular disease, cancer, diabetes, and respiratory disease risk

Sources

  • Chiuve SE, et al. (2012). Alternative dietary indices both strongly predict risk of chronic disease. Journal of Nutrition, 142(6), 1009-1018.
  • Willett WC. Eat, Drink, and Be Healthy: The Harvard Medical School Guide to Healthy Eating. Simon & Schuster, 2001.
  • Fung TT, et al. (2005). Diet quality scores and plasma concentrations of markers of inflammation and endothelial dysfunction. American Journal of Clinical Nutrition, 82(1), 163-173.
Weight Management

Ketogenic Diet: Clinical Protocol and Evidence Base

Source: Johns Hopkins Hospital Epilepsy Center / Ketogenic Diet Resource

The ketogenic diet was developed at Johns Hopkins Hospital in 1921 by Dr. Russell Wilder for drug-resistant epilepsy and is the most medically validated low-carbohydrate diet. The standard clinical protocol (4:1 fat-to-protein-and-carbohydrate ratio by weight) has been used continuously in clinical practice for over 100 years. This guide covers the therapeutic protocol and its broader clinical applications.

The Macronutrient Framework

  • Carbohydrates: 20 to 50g net carbs per day (less than 5 to 10% of total calories)
  • Protein: 15 to 25% of total calories; adequate protein is essential to prevent muscle loss
  • Fat: 60 to 75% of total calories; the primary fuel source
  • Nutritional ketosis: blood ketone levels of 0.5 to 3.0 mmol/L (measured with a blood ketone meter)
  • Caloric deficit: not required for ketosis, but often occurs naturally due to satiety effects

What to Eat

  • Animal proteins: fatty cuts of meat, poultry, eggs, full-fat dairy, salmon, mackerel
  • Non-starchy vegetables: leafy greens, broccoli, cauliflower, courgette, asparagus, peppers
  • Healthy fats: avocado, olive oil, coconut oil, MCT oil, butter, ghee
  • Nuts and seeds: macadamias, Brazil nuts, pecans, walnuts, chia seeds, hemp seeds (in moderation)
  • Avoid: all grains, legumes, starchy vegetables, most fruits, added sugars, processed foods

Clinical Evidence Beyond Epilepsy

  • Obesity: systematic review of 13 RCTs (Bueno et al., 2013, British Journal of Nutrition): ketogenic diet produced 0.9 kg more weight loss than low-fat diet at 24 months
  • Type 2 diabetes: Virta Health 5-year study (2022): 70% of participants who maintained ketogenic eating had HbA1c below diabetic threshold, with 50% achieving complete remission
  • PCOS: ketogenic diet reduced testosterone, improved insulin sensitivity, and restored menstrual cycles in a small pilot trial (Mavropoulos et al., 2005, Nutrition and Metabolism)
  • Brain health: ketone bodies are neuroprotective and have shown benefit in early Alzheimer's disease in preliminary research (Henderson et al., 2009)
Note: The ketogenic diet carries real risks including the keto flu in the first 1 to 2 weeks (electrolyte depletion), potential for LDL cholesterol elevation in some individuals, and kidney stone risk. Not recommended for people with pancreatitis, liver failure, fat metabolism disorders, or carnitine deficiency. Medical supervision is advised.

Sources

  • Bueno NB, et al. (2013). Very-low-carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: a meta-analysis of randomised controlled trials. British Journal of Nutrition, 110(7), 1178-1187.
  • Hallberg SJ, et al. (2022). Effectiveness and safety of a novel care model for the management of type 2 diabetes at 1 year: an open-label, non-randomized, controlled study. Diabetes Therapy, 9(2), 583-612.
  • Freeman JM, et al. (2007). The ketogenic diet: one decade later. Pediatrics, 119(3), 535-543.
Anti-Inflammatory

Gut Microbiome Optimisation Diet

Source: Professor Tim Spector / King's College London / Sonnenburg Lab, Stanford

Based on the ZOE PREDICT studies at King's College London (Professor Tim Spector) and the microbiome research of Professor Justin Sonnenburg at Stanford, this dietary framework maximises gut microbial diversity through plant variety, fermented foods, and fibre. The landmark Sonnenburg et al. (2022, Cell) trial directly compared high-fibre and high-fermented food diets in healthy adults.

The 30-Plant-Variety Goal

  • Aim for 30 different plant foods per week — the strongest predictor of microbiome diversity (American Gut Project, 2018)
  • Includes all plants: vegetables, fruits, wholegrains, legumes, nuts, seeds, herbs, and spices
  • Each different plant variety counts separately: white onion and red onion are two plants
  • Herbs and spices each count individually; use them generously to boost variety affordably
  • Rainbow principle: eat all colours daily; phytonutrients have different microbiome effects

Fermented Foods Daily

  • Sonnenburg et al. (2022, Cell): high-fermented food diet over 10 weeks increased microbiome diversity and decreased 19 inflammatory proteins vs high-fibre diet alone
  • Daily fermented food targets: kefir, plain yoghurt, kimchi, sauerkraut, kombucha, miso, tempeh
  • Aim for 6 portions of fermented food per day for maximum diversity benefit
  • Homemade fermented foods are significantly higher in live bacteria than commercial versions
  • Introduce fermented foods gradually to avoid digestive discomfort

Polyphenol Prioritisation

  • Extra virgin olive oil: 36 polyphenols; anti-inflammatory and microbiome-feeding
  • Dark chocolate (85% and above): among the highest polyphenol foods by weight
  • Coffee: a major source of polyphenols in UK and Northern European diets
  • Red wine in moderation: resveratrol and other polyphenols feed Lactobacillus species
  • ZOE research shows polyphenol intake is associated with post-meal glucose and fat regulation

Sources

  • Sonnenburg JL, et al. (2022). Gut-microbiota-targeted diets modulate human immune status. Cell, 184(16), 4137-4153.
  • McDonald D, et al. (2018). American Gut: an open platform for citizen science microbiome research. mSystems, 3(3), e00031-18.
  • Spector T. The Diet Myth. Weidenfeld and Nicolson, 2015.
Longevity

Protein-Optimised Longevity Nutrition

Source: Dr. Donald Layman / University of Illinois / Dr. Gabrielle Lyon

Dr. Donald Layman, Professor Emeritus at the University of Illinois, has conducted over 30 years of research on dietary protein and muscle metabolism. This framework, also advanced by Dr. Gabrielle Lyon and published across multiple peer-reviewed journals, argues that the optimal protein intake for adults over 40 is substantially higher than current government guidelines, which were designed to prevent deficiency, not to optimise muscle maintenance and longevity.

Evidence-Based Protein Targets

  • Minimum for muscle maintenance over 40: 1.2g per kg of body weight per day
  • Optimal for muscle synthesis and longevity: 1.6 to 2.2g per kg of body weight per day
  • For active adults and those doing resistance training: up to 2.4g per kg per day
  • UK government RDA (0.75g/kg/day) is designed to prevent deficiency, not to maintain muscle mass in ageing adults
  • Per-meal threshold for muscle protein synthesis: 35 to 50g of protein per meal to maximally stimulate muscle building (Churchward-Venne et al., 2012)

Leucine: The Anabolic Trigger

  • Leucine is the key amino acid that triggers mTOR and muscle protein synthesis
  • Per-meal leucine threshold: approximately 2.5 to 3g to stimulate maximum muscle protein synthesis
  • High-leucine foods: whey protein (11g/100g), eggs (1.1g/egg), chicken breast (1.7g/100g), beef (1.6g/100g), salmon (1.6g/100g)
  • Plant protein sources have lower leucine per gram and lower digestibility — require higher total protein intake to match anabolic stimulus
  • Leucine-enriched plant protein blends (soy + pea + rice) can approach animal protein MPS stimulus at higher doses

Distributing Protein for Maximum Anabolic Effect

  • Distribute protein evenly across 3 to 4 meals; do not concentrate most protein at dinner
  • Breakfast is the most commonly protein-deficient meal; aim for 35 to 50g at breakfast
  • Post-exercise: 40 to 50g of high-leucine protein within 2 hours of resistance training
  • Pre-sleep casein: 40g of slow-digesting protein before bed increases overnight muscle protein synthesis by 22% (Res et al., 2012)

Sources

  • Layman DK, et al. (2015). Defining meal requirements for protein to optimise metabolic roles of amino acids. American Journal of Clinical Nutrition, 101(6), 1330S-1338S.
  • Churchward-Venne TA, et al. (2012). Supplementation of a suboptimal protein dose with leucine or essential amino acids: effects on myofibrillar protein synthesis at rest and following resistance exercise in men. Journal of Physiology, 590(11), 2751-2765.
  • Lyon G. Forever Strong: A New, Science-Based Strategy for Aging Well. Atria Books, 2023.
Longevity

CALERIE Caloric Restriction for Longevity

Source: CALERIE Research Network / Duke University / Tufts University / LSU Pennington

CALERIE (Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy) is the first large randomised controlled trial in non-obese humans to test whether caloric restriction (CR) can slow ageing. Across sites at Duke, Tufts, and Louisiana State University, 218 healthy adults were randomised to 25% caloric restriction or ad libitum eating for 2 years. Published in JAMA Internal Medicine (2015).

The Protocol

  • Target: 25% reduction in caloric intake from baseline (e.g., if baseline is 2,200 kcal, target is 1,650 kcal)
  • No specific macronutrient ratio required; focus on overall caloric reduction while maintaining nutritional adequacy
  • Behaviour strategies used in the trial: self-monitoring, group sessions, individual counselling, and meal planning
  • Participants achieved 11.9% caloric restriction on average (real-world adherence to 25% target is challenging)
  • Duration: 2 years; longer-term effects modelled from the achieved restriction

What CALERIE Participants Were Taught

  • Choose calorie-sparse foods: vegetables, fruit, legumes, and lean protein over calorie-dense processed foods
  • Increase eating mindfulness: slow down, reduce portions by 25%, wait 20 minutes before seconds
  • Reduce energy-dense snacks and beverages; replace with water and whole foods
  • Maintain adequate protein to prevent lean mass loss during restriction
  • Physical activity: 150 minutes of moderate activity per week maintained throughout

Biological Age and Health Outcomes

  • CALERIE-2 (Kraus et al., 2019, The Lancet Diabetes and Endocrinology): 2 years of modest CR improved biomarkers of cardiovascular risk, metabolic health, and quality of life
  • Epigenetic age: analysis of CALERIE participants (Waziry et al., 2023, Nature Aging) found that CR slowed the pace of biological ageing by 2 to 3% on multiple epigenetic clocks
  • Key improvements: LDL cholesterol, blood pressure, triglycerides, fasting insulin, and inflammatory markers all significantly reduced
  • Mood and quality of life improved significantly in the CR group despite initial adaptation period
Note: Caloric restriction at 25% is demanding and produced only 11.9% actual restriction in the trial. The biological benefits appear proportional to the achieved restriction. A more practical target of 10 to 15% reduction from baseline is more sustainable and still produces meaningful benefits.

Sources

  • Kraus WE, et al. (2019). 2 years of calorie restriction and cardiometabolic risk (CALERIE): exploratory outcomes of a multicentre, phase 2, randomised controlled trial. Lancet Diabetes and Endocrinology, 7(9), 673-683.
  • Waziry R, et al. (2023). Effect of long-term caloric restriction on DNA methylation measures of biological aging in healthy adults from the CALERIE trial. Nature Aging, 3(3), 248-257.
  • Racette SB, et al. (2017). One year of caloric restriction in humans: feasibility and effects on body composition and abdominal adipose tissue. Journals of Gerontology, 61(9), 943-950.
Longevity

Traditional Okinawan Diet

Source: Okinawa Centenarian Study / Dr. Bradley Willcox / University of Hawaii

The Okinawa Centenarian Study, launched in 1975 by Dr. Makoto Suzuki and later joined by Dr. Bradley and Craig Willcox, has documented the dietary patterns of the world's longest-lived population. Before Western food influences arrived in the 1960s, the traditional Okinawan diet supported the highest confirmed centenarian rate on Earth and dramatically lower rates of heart disease, cancer, and dementia than Western populations.

The Traditional Okinawan Diet (pre-1960)

  • Sweet potato: the cornerstone food, comprising 67% of total calories in the 1940s diet; rich in carotenoids, vitamin C, and fibre
  • Total caloric intake: approximately 1,785 kcal per day — 17% below the Japanese average at the time
  • Macronutrient split: 85% carbohydrate, 9% protein, 6% fat — an unusually high-carbohydrate, very low-fat pattern
  • Green and yellow vegetables: consumed daily in large quantities (bitter melon, seaweed, green leafy vegetables)
  • Soy foods: tofu and miso daily; primary protein source
  • Fish: 2 to 3 times per week; mainly small oily fish and shellfish
  • Meat: very rare historically — pork eaten in small amounts at festivals only
  • No dairy historically; calcium from sea vegetables and tofu

Hara Hachi Bu: The Caloric Restriction Practice

  • A Confucian teaching practised by Okinawans: stop eating when 80% full
  • Creates approximately 20% spontaneous caloric reduction without intentional restriction
  • Okinawans who practised Hara Hachi Bu consistently had BMIs of 18 to 22 throughout life
  • Associated with lower leptin levels, greater insulin sensitivity, and longer telomere length
  • Practical implementation: eat slowly, use smaller plates, stop when you lose active interest in food

Health Outcomes in the Okinawa Centenarian Study

  • Breast cancer mortality: 80% lower than US rates in traditional Okinawan women
  • Heart disease mortality: 82% lower than US rates in traditional Okinawan men
  • Centenarian rate: 6.2 per 10,000 population vs 1.8 in the US (prior to 1960s Westernisation)
  • Dementia rates: significantly lower than Western populations; phytoestrogens from soy hypothesised as a contributing factor
  • Note: younger Okinawans who adopted the Western diet now have obesity and mortality rates exceeding the Japanese national average

Sources

  • Willcox BJ, et al. (2009). Caloric restriction, the traditional Okinawan diet, and healthy aging. Annals of the New York Academy of Sciences, 1114, 434-455.
  • Willcox DC, et al. (2014). The Okinawan diet: health implications of a low-calorie, nutrient-dense, antioxidant-rich dietary pattern low in glycemic load. Journal of the American College of Nutrition, 28(sup4), 500S-516S.
  • Suzuki M, et al. (2001). Implications from and for food cultures for cardiovascular disease: longevity. Asia Pacific Journal of Clinical Nutrition, 10(2), 165-171.
Plant-Based Diets

Engine 2 Plant-Strong Diet

Source: Rip Esselstyn / Dr. Caldwell Esselstyn, Cleveland Clinic

Developed by former professional triathlete and firefighter Rip Esselstyn, and based on the clinical work of his father Dr. Caldwell Esselstyn at the Cleveland Clinic, the Engine 2 Diet is a whole food, plant-based, oil-free diet. Dr. Caldwell Esselstyn's landmark case series (American Journal of Cardiology, 1999, 2014) demonstrated arrest and reversal of heart disease in patients given up for terminal by conventional medicine.

Engine 2 Diet Principles

  • Whole food plant-based: eat only foods from plants in their whole or minimally processed form
  • No oil: all added oils are excluded, including olive oil; fats come from whole foods only
  • No animal products: no meat, dairy, eggs, or fish
  • No refined grains: wholegrain versions only — wholemeal bread, brown rice, wholemeal pasta
  • Minimise: salt, added sugar, alcohol
  • Eat freely: all whole vegetables, fruits, legumes, whole grains, nuts, and seeds

The 28-Day Engine 2 Framework

  • Breakfast: oat porridge with almond milk, banana, and berries; or whole grain toast with nut butter and sliced fruit
  • Lunch: large grain bowl with brown rice, roasted vegetables, chickpeas, and tahini dressing
  • Dinner: lentil bolognese over wholemeal pasta; or bean and vegetable stew with rye bread
  • Snacks: hummus with vegetable sticks; fruit; small handful of unsalted nuts
  • No calorie counting: eat until satisfied; the satiety from fibre and volume self-regulates intake

Clinical Evidence from Dr. Caldwell Esselstyn

  • Esselstyn CB, et al. (2014, Journal of Family Practice): 198 patients with established cardiovascular disease — those who adhered to the plant-based oil-free diet had a 0.6% cardiac event rate over 3.7 years vs 62% in those who fell off the diet
  • Coronary artery disease: measurable reversal of arterial stenosis demonstrated by angiography in the original 1999 case series
  • Average LDL cholesterol reduction: 37% without cholesterol-lowering medication

Sources

  • Esselstyn CB Jr, et al. (2014). A way to reverse CAD? Journal of Family Practice, 63(7), 356-364.
  • Esselstyn CB Jr. (2001). Resolving the coronary artery disease epidemic through plant-based nutrition. Preventive Cardiology, 4(4), 171-177.
  • Esselstyn CB Jr. Prevent and Reverse Heart Disease. Avery, 2007.
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