Association between plant-based diets and incident dementia: results from prospective cohort studies and a meta-analysis.

ABSTRACT:

Background

Plant-based diets are increasingly advocated for their health benefits, yet their associations with dementia risk remains inconclusive. We evaluated the associations between plant-based dietary patterns and dementia risk across three prospective cohorts and a meta-analysis.

Methods

Cohort analyses included the Health and Retirement Study (HRS; N = 6642), Framingham Heart Study Offspring cohort (FOS; N = 3045), and Whitehall II study (WHII; N = 8219). Participants were aged ≥45 years and free of dementia at baseline. The overall plant-based diet index (PDI), healthful plant-based diet index (hPDI) and unhealthful plant-based diet index (uPDI) were calculated from validated food frequency questionnaires. Further, a meta-analysis was conducted incorporating data from

SUBMITTER: Shen J 

PROVIDER: S-EPMC12856605 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature