Association between diet quality and the oral microbiome in three US cohort studies.

ABSTRACT:

Background

The oral microbiome has been associated with overall health, but the contribution of dietary habits to oral microbial composition is not well understood.

Objective

We evaluated the association between diet quality (Healthy Eating Index [HEI] 2015) and the oral microbiome in the Agricultural Health Study, NIH-AARP Diet and Health Study, and Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial within 5,546 participants.

Methods

Individual HEI components were scored from FFQ data and summed. Alpha and beta diversity and genus-level presence and relative abundance were estimated. The proportion of variability in the beta diversity matrices explained by diet quality and other covariates were calculated. Linear, logistic, and zero-inflated negative bino

SUBMITTER: Li F 

PROVIDER: S-EPMC12934338 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature