Department of Nutritional Sciences, University of Connecticut, 3624 Horsebarn Road Extension Unit 4017, Storrs, CT, 06269-4017, USA.
BOM Research Institute, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Korea.
Eur J Nutr. 2016 Mar;55(2):833-843. doi: 10.1007/s00394-015-0942-x. Epub 2015 May 31.
This study was conducted to: (1) demonstrate an updated method for estimating flavonoid intake of US adults by combining USDA flavonoid databases and NHANES food consumption data; (2) document the intake and major food sources of flavonoids among US adults; and (3) determine whether the intake and major sources of dietary flavonoids have changed during the past decade in the USA.
A cross-sectional population-based study. Differences over time in the average daily intake and food sources of flavonoids were estimated using food consumption data from NHANES 1999-2002 (n = 8833) and 2007-2010 (n = 9801).
The total flavonoid intake of US adults aged 19 years and older remained unchanged between 1999-2002 (201.9 mg/d) and 2007-2010 (200.1 mg/d), with tea being the top food source of flavonoids. However, intake of anthocyanidins increased during this period, mainly due to greater consumption of berries and wine, which was consistent with the increase in per capita consumption of these foods based on USDA food availability data.
The results of this study provide updated information on flavonoid intake and food contributors and warrant further studies on the health implications of flavonoid intake.
本研究旨在：(1) 结合美国农业部的黄酮类化合物数据库和 NHANES 食物消费数据，展示一种更新的美国成年人黄酮类化合物摄入量估计方法；(2) 记录美国成年人黄酮类化合物的摄入量和主要食物来源；(3) 确定在美国过去十年中，膳食黄酮类化合物的摄入量和主要来源是否发生了变化。
这是一项基于人群的横断面研究。使用 NHANES 1999-2002 年（n=8833）和 2007-2010 年（n=9801）的食物消费数据，估计黄酮类化合物的日均摄入量和食物来源随时间的差异。
19 岁及以上美国成年人的总黄酮类化合物摄入量在 1999-2002 年（201.9mg/d）和 2007-2010 年（200.1mg/d）之间保持不变，茶是黄酮类化合物的主要食物来源。然而，在此期间，类黄酮的摄入量有所增加，主要是由于浆果和葡萄酒的消费增加，这与基于美国农业部食物供应数据的这些食物的人均消费增加是一致的。
本研究的结果提供了关于黄酮类化合物摄入量和食物来源的最新信息，值得进一步研究黄酮类化合物摄入量对健康的影响。
