Healthy Eating Index, Epigenetic Age Acceleration and Mortality Risk in US Adults
Higher diet quality correlates with slower epigenetic aging and reduced mortality risk in two large U.S. cohorts, with epigenetic age acceleration (GrimAgeEAA) explaining approximately 44% of the diet-mortality association in one cohort. The relationship is partially confounded by physical activity and integrated lifestyle factors, indicating that diet operates within a broader system of behavioral and biological aging pathways rather than in isolation.

