Article Publish Status: FREE
Abstract Title:

Dietary flavonoid intake at midlife and healthy aging in women.

Abstract Source:

Am J Clin Nutr. 2014 Dec ;100(6):1489-97. Epub 2014 Oct 29. PMID: 25411284

Abstract Author(s):

Cécilia Samieri, Qi Sun, Mary K Townsend, Eric B Rimm, Francine Grodstein

Article Affiliation:

Cécilia Samieri


BACKGROUND: Dietary flavonoids have been related to lower risks of various chronic diseases, but it is unclear whether flavonoid intake in midlife helps to maintain good health and wellbeing in aging.

OBJECTIVE: We examined the relation of flavonoid intake in midlife with the prevalence of healthy aging.

DESIGN: We included 13,818 women from the Nurses' Health Study with dietary data and no major chronic diseases in 1984-1986 when they were aged in their late 50s (median age: 59 y); all women provided information on multiple aspects of aging an average of 15 y later. Intakes of 6 major flavonoid subclasses in midlife were ascertained on the basis of averaged intakes of flavonoid-rich foods from 2 food-frequency questionnaires (1984-1986). We defined healthy compared with usual aging as of age 70 y; healthy aging was based on survival to≥70 y with maintenance of 4 health domains (no major chronic diseases or major impairments in cognitive or physical function or mental health).

RESULTS: Of women who survived until≥70 y of age, 1517 women (11.0%) met our criteria for healthy aging. Compared with women in the lowest quintile of intake, women in the highest quintile of intake of several flavonoid subclasses at midlife had greater odds of healthy aging. After multivariable adjustment, ORs were as follows: flavones, 1.32 (95% CI: 1.10, 1.58); flavanone, 1.28 (95% CI: 1.08, 1.53); anthocyanin, 1.25 (95% CI: 1.04, 1.50); and flavonol, 1.18 (95% CI: 0.98, 1.42) (all P-trend ≤ 0.02). Consistently, greater intakes of major sources of these flavonoids (i.e., oranges, berries, onions, and apples) were associated with increased odds of healthy aging. We showed no association with flavan-3-ol monomers (P-trend = 0.80) or polymers (P-trend = 0.63).

CONCLUSION: Higher intake of flavonoids at midlife, specifically flavones, flavanones, anthocyanins, and flavonols, is associated with greater likelihood of health and wellbeing in individuals surviving to older ages.

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