Discovering the direct relations between nutrients and epigenetic ageing.

Area of Science:

• Nutritional science
• Epigenetics
• Gerontology

Background:

• Societal aging increases age-related diseases, necessitating healthy aging strategies.
• Biological age, reflecting physiological decline, is a better aging indicator than chronological age.
• Nutritional factors can impact biological age and mitigate age-related disease risks.

Purpose of the Study:

• To investigate the direct relationship between nutrient intake and biological aging.
• To identify specific nutrients that influence the rate of epigenetic aging.
• To explore potential dietary interventions for promoting healthy aging.

Main Methods:

• Analysis of data from 3,969 postmenopausal women (Women's Health Initiative).
• Utilized the PhenoAge epigenetic clock to measure biological age.
• Employed Copula Graphical Models for data-driven analysis of nutrient-age acceleration relationships.

Main Results:

• Higher intake of coumestrol, beta-carotene, and arachidic acid correlated with slower epigenetic aging.
• Increased consumption of added sugar, gondoic acid, behenic acid, arachidonic acid, vitamin A, and ash correlated with faster epigenetic aging.
• Identified specific nutrients directly associated with epigenetic age acceleration in postmenopausal women.

Conclusions:

• Established direct links between dietary nutrients and epigenetic aging.
• Highlighted coumestrol, beta-carotene, arachidic acid, added sugar, and specific fatty acids as key factors.
• Findings suggest potential targets for dietary interventions to modulate aging processes.