Zinc & prostate cancer
This article was originally published in The Tan Sheet
Executive Summary
Chronic zinc oversupply "may play a role in prostate carcinogenesis," according to data compiled by Michael Leitzmann, MD, National Institutes of Health, et al., appearing in July 2 Journal of the National Cancer Institute. Researchers found that "compared with nonusers, men who consumed more than 100 mg per day of supplemental zinc had a relative risk of advanced prostate cancer of 2.29, and men who took supplemental zinc for ten or more years" had a relative risk of 2.37. Leitzmann et al. studied data collected from 46,974 men in the Health Professionals Follow-Up Study between 1986 and 2000. Residual confounding by supplemental calcium intake or by an unmeasured correlate of zinc supplement use could explain these findings, researchers suggest, although they recommend further investigation...