A report from the Press Trust of India suggests that a diet with high amounts of products from the allium group (garlic, onion, chives, leeks, scallions) may significantly reduce prostate cancer risk, according to a study conducted by researchers at the Shanghai Cancer Institute and National Cancer Institute.
The study itself was based on self-reported data, specifically frequency of food item consumption, with these responses correlated with prostate cancer incidence. The study appears this week in the Journal of the National Cancer Institute and reports on over 700 men, of whom approximately one third had prostate cancer.
The prostate cancer risk appeared to be body size and total calorie intake independent. According to the study, a third of an ounce or more of allium product per day showed prostate cancer incidence less than half that of those who did not consume that amount of allium.