The Study
Associations of diet patterns with successful aging, longevity, and extreme longevity: a prospective cohort study among Chinese adults 65 years or older
This study shows that older Chinese people who eat a more varied diet with more protein tend to live longer and age better, but it doesn’t prove that the diet caused this. It’s like noticing that people who wear hats also carry umbrellas — they go together, but one doesn’t necessarily cause the other.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
Older people in China who eat a variety of foods with more protein, like meat, fish, eggs, and beans, are more likely to age well and live longer.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 533 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes, these numbers suggest that eating more varied, protein-rich foods is linked to much better chances of living well and longer in old age.
- 2For every step up in healthy protein-rich eating, there was 20% better chance of healthy aging, 26% higher chance of living longer, and 83% higher chance of living to a very old age.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
European Journal of Nutrition
Year
2025
Authors
Yingying Chen, Yaning Sun, Yinyin Chen, Yawen Cao, Wenbin Fang, Mohamed Sannoh, Gui-ping Pan
Related Content
Claims (4)
Eating lots of fruits and veggies, some lean meats, and a good mix of healthy fats might help you feel better and live longer.
Older adults in China who eat a more varied diet with plenty of different protein-rich foods tend to live longer — each step up in dietary variety is linked to a better chance of living longer.
Older Chinese adults who eat a more varied diet rich in protein are much more likely to live to an extremely old age compared to those who don’t.
Eating a more varied diet with plenty of protein might help older Chinese adults age more healthily — for every step up in diet quality, the odds of aging well go up by 20%.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.