刚刚在WIKIPEDIA上看到这样一段话

来源: 好吃狗 于 2011-01-19 09:17:06 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (1728 bytes)
回答: GRAPEFRUIT不是防癌的食物吗？ 由 好吃狗 于 2011-01-19 09:02:21

Since grapefruit juice is known to inhibit enzymes necessary for the clearance of some drugs and hormones, some have hypothesized that grapefruit juice may play an indirect role in the development of hormone-dependent cancers. A 2007 study found a correlation between eating a quarter of grapefruit daily and a 30% increase in risk for breast cancer in post-menopausal women. The study points to the inhibition of CYP3A4 enzyme by grapefruit, which metabolizes estrogen.[37] However, a 2008 study has shown that grapefruit consumption does not increase breast cancer risk and found a significant decrease in breast cancer risk with greater intake of grapefruit in women who never used hormone therapy.[38]

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