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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Health effects of natural phenols and polyphenols ： ウィキペディア英語版 Health effects of natural phenols and polyphenols Because of the large structural diversity and extensive metabolism of dietary polyphenols, it is difficult to determine their fate in vivo and assert specific health effects. Although many are speculated to be part of the health-promoting effects of consuming fruits and vegetables, no evidence exists to date that dietary polyphenols actually provide health benefits. To what extent effects would apply to entire organisms, and clinical outcomes in human disease in particular, remains an undefined topic in nutrition science and disease prevention. ==Bioavailability== Polyphenols have poor bioavailability, indicating that most of what are consumed are extensively metabolized and excreted.〔〔 Gallic acid and isoflavones may show absorption of about 5%,〔〔 with amounts of catechins (flavan-3-ols), flavanones, and quercetin glucosides even less.〔 The least well-absorbed phenols are the proanthocyanidins, galloylated tea catechins, and anthocyanins. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Health effects of natural phenols and polyphenols」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.