A recent chain e-mail has made some people concerned about eating grapefruit. According to the messages, a 2007 study in The British Journal of Cancer found an increased risk of breast cancer among postmenopausal women who ate large amounts of grapefruit.The study is real; it looked at more than 46,000 women, and those who ate half a grapefruit every other day had a 30 percent higher risk of breast cancer compared to those who ate none.
However, a more recent report, which followed more than 77,000 women over the course of many years, found no rise in breast cancer related to either grapefruit or grapefruit juice.
Experts at the American Cancer Society said that there was insufficient evidence to raise alarm, but that women with concerns could cut back on grapefruit.
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