Breast Cancer Link
A study published in the July 2007 edition of the British Journal of Cancer reported that eating grapefruit every day could raise the risk of developing breast cancer by almost a third. The study found that in the test subjects, 50,000 post-menopausal women, eating just a quarter of a grapefruit daily raised the risk by up to 30%. It is believed that the fruit boosts the levels of estrogen, which in turn increases the risk of developing the disease. However, a 2008 study has shown that grapefruit consumption does not increase breast cancer risk and has found a significant decrease in breast cancer risk with greater intake of grapefruit in women who never used hormone therapy.
In 2009, a third study conducted by European Prospective Investigation into Cancer and Nutrition (EPIC) observed 114,504 women and their dietary intake of grapefruit. This study concluded that there was no association between grapefruit intake and estradiol or estrone among postmenopausal women. Researchers found no evidence of an association between grapefruit intake and risk of breast cancer.
Read more about this topic: Grapefruit Juice
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