Dietary flavonoid intake, total antioxidant capacity and lipid oxidative damage: A cross-sectional study of Iranian women

Nutrition
Beitolah AlipourSareh Edalati

Abstract

Although strong evidence supports the antioxidant potential of flavonoids in vitro, the effect of flavonoids at physiological concentrations on the overall antioxidant status in humans is inconsistent. The aim of this study was to examine cross-sectional associations between total flavonoid consumption, serum total antioxidant capacity (TAC), and malondialdehyde (MDA) levels in apparently healthy women. Through a multistage cluster sampling, 170 women ages 20 to 48 y were recruited. The usual dietary flavonoid intake was estimated using a semiquantitive food frequency questionnaire (FFQ) by matching food items with the US Department of Agriculture flavonoid databases. General linear models were used to compare the biochemical parameters across tertiles of flavonoid intakes. As dietary anthocyanin intake rose from the lowest to the highest tertile, the multivariate-adjusted mean TAC concentrations significantly increased from 1.08 to 1.28 (Ptrend = 0.01). This association was still significant after adjustment for fruit and vegetable intake and antioxidant vitamins (Ptrend = 0.03). The highest tertile of total flavonoid intake and theaflavins had higher mean concentrations of TAC than did the lowest tertile, but there was no lin...Continue Reading

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Citations

May 22, 2019·Antioxidants·Carmen Rodríguez-GarcíaJosé J Gaforio
Feb 16, 2020·Nutrients·Dalia M KopustinskieneJurga Bernatoniene
Sep 12, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jing TengMingfu Wang
Apr 17, 2021·International Journal of Food Sciences and Nutrition·Ratih W WisnuwardaniNathalie Michels

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