Red cabbage is one of the most nutritionally undervalued foods in the British diet. It is available year-round, extremely affordable, keeps for weeks refrigerated, and contains a combination of anthocyanins, glucosinolates, vitamin C, vitamin K1, potassium, and prebiotic fibre that makes it one of the most comprehensive single-food nutritional contributions available at any price point.
Anthocyanin Concentration
Red cabbage contains cyanidin-3-glucoside and other anthocyanins at concentrations comparable to blueberries per 100-gram serving. Anthocyanins from red cabbage are absorbed in the small intestine and distributed to tissues including the brain. A meta-analysis found that anthocyanin intake from food is significantly associated with reduced cardiovascular disease mortality, reduced incidence of type 2 diabetes, and better cognitive performance in prospective cohort studies.
Glucosinolates and Liver Support
Like all cruciferous vegetables, red cabbage contains glucosinolates that are converted to isothiocyanates including sulforaphane upon chopping and chewing. These compounds activate Nrf2 and upregulate the liver's phase II detoxification enzymes. Raw or lightly cooked red cabbage is particularly high in myrosinase activity, meaning the conversion efficiency to sulforaphane is high when eaten in these forms.
- Add shredded raw red cabbage to salads, slaws, and tacos
- Fermented red cabbage sauerkraut provides both the glucosinolate benefits and probiotic bacteria
- Brief stir-frying preserves significantly more glucosinolates than boiling or extended steaming
- The purple colour is stable in acid conditions: adding apple cider vinegar to red cabbage dishes preserves the anthocyanin colour and stability during cooking