The Study
Prospective Evaluation of the Association of Nut/Peanut Consumption With Total and Cause-Specific Mortality
This study watched people for years and noticed that those who ate more nuts tended to live longer, especially from heart problems. But it didn’t make people eat nuts — it just saw what they already did. So we can’t say nuts made them live longer — maybe they just had healthier lives overall.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
Scientists looked at whether eating nuts or peanuts is linked to living longer, especially in poor communities and different ethnic groups.
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 552 / 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 — eating peanuts or nuts regularly may help prevent heart disease deaths, even for people with obesity or high blood pressure, and it’s affordable.
- 2People who ate more nuts or peanuts were 17% to 21% less likely to die from any cause, and 30% to 40% less likely to die from heart disease.
- 3This was true for peanuts too, even though they’re cheaper than tree nuts.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
JAMA internal medicine
Year
2015
Authors
H. Luu, W. Blot, Y. Xiang, H. Cai, M. Hargreaves, Hong-Lan Li, Gong Yang, L. Signorello, Yutang Gao, Wei Zheng, X. Shu
Related Content
Claims (9)
People who eat nuts have a lower rate of death from any cause compared to those who do not eat nuts.
People who eat nuts or peanuts have a lower risk of dying from heart disease, regardless of whether they have obesity, high blood pressure, or diabetes.
People who eat more nuts and peanuts have a 17% to 21% lower risk of dying from any cause compared to those who eat less, based on observations in diverse populations including African and European Americans and Chinese adults in Shanghai, with similar results for men and women.
In low-income populations in the U.S. and China, eating nuts and peanuts does not show a statistically significant reduction in deaths from cancer or diabetes.
People who eat more nuts and peanuts have a 30% to 40% lower risk of dying from ischemic heart disease compared to those who eat the least, based on studies in African, European, and Asian populations.
People in low-income communities in the U.S. who eat peanuts have the same lower risk of death as people in other groups who eat tree nuts.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.