Eating more plants does not mean muscle becomes unimportant. Strength and adequate nutrition belong together, especially when appetite falls or weight changes. The question is not whether a plant-based label guarantees a healthy diet. It is whether your actual meals provide enough energy, protein and essential nutrients.
What the newer review found
A 2025 systematic review identified 43 randomised trials comparing plant and animal protein. Pooled analyses found a small average advantage for animal protein on muscle mass, with differences depending on the plant source and study group. Soy and milk protein did not differ significantly in the pooled muscle-mass comparison. Strength and physical-performance outcomes showed no significant overall difference.
No included trial examined sarcopenia as an outcome. It would therefore be misleading to claim the review proves one diet prevents that condition. It is also too broad to claim all plant proteins are identical or that protein source never matters. Many studies used supplements rather than ordinary long-term eating patterns.
Make protein visible in meals
Tofu, tempeh, beans, lentils and appropriate fortified soy products can contribute useful protein. A varied pattern and enough total food matter. Protein planning should accompany resistance exercise rather than replace it. People with kidney disease or complex medical needs should get individual advice instead of copying a high-protein target from social media.
- Include a recognisable protein source at meals.
- Use convenient options you enjoy.
- Check that total intake is adequate.
- Review strength and function as well as weight.
At Zhen, whole-food plant-based support can be planned around your priorities without pretending inconvenient findings do not exist. If your goal is maintaining muscle, a practical assessment and realistic nutrition discussion are more useful than a debate about which label is healthiest.
Putting this into practice at Zhen
At Zhen Wellness in Onchan, Isle of Man, we help you turn health information into realistic next steps. The £97 Longevity MOT is a standalone 60-minute assessment of your history, priorities, posture, mobility and body composition estimates, with pain mapping where relevant. It is not a biological-age blood test, medical diagnosis or prediction of lifespan. Any further service is chosen separately around your needs, with costs discussed before you decide.
Research and safety
Sources checked on 14 October 2026. Studies describe their own participants and interventions, not Zhen treatment outcomes. Evidence can change; research is not free of bias. This article is general education, not individual medical advice. Adult fasting or exercise protocols are not suitable instructions for children. Seek appropriate clinical advice for new symptoms, medical conditions, pregnancy or treatment changes. Never stop prescribed medicines to follow a wellness plan.