Do vegetarian diets help people live longer?
Vegetarian Dietary Patterns and Mortality in Adventist Health Study 2
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tracked what people ate and who died over several years to see if eating less meat helps people live longer.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
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Evidence 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.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tracked what people ate and who died over several years to see if eating less meat helps people live longer.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 567 / 72
Evidence 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.
Publication
Authors
Orlich MJ, Singh PN, Sabaté J, Jaceldo-Siegl K, Fan J, Knutsen S, Beeson WL, Fraser GE
Related Content
Claims (3)
People who follow a pescatarian diet have a lower rate of death from any cause compared to people who eat meat and fish.
Consumption of plant-based proteins and fish is associated with lower all-cause mortality.
In humans, higher intake of plant-based and fish proteins is associated with reduced all-cause mortality, and protein restriction does not reliably extend lifespan.