An article in the British medical journal, Lancet, offers evidence that lack of vitamin D causes prostate cancer.

Most men meet their needs for vitamin D through exposure to sunlight because they do not get enough from their diet. Men who live in colder climates have a higher incidence of prostate cancer because they get less sunlight. Studies from Harvard School of public Health show that men who drink more than four glasses of milk a day have low blood levels of vitamin D and are at increased risk for prostate cancer. Calcium uses up vitamin D and not enough vitamin D is added to milk to cover the extra calcium used.

This study shows that prostate cancer is associated with not exposing skin to sunlight and not going on holidays to beach resorts. Susceptibility to prostate cancer was not found to be associated with vasectomy, benign prostatic enlargement or eating any particular food.

Lancet August 25, 2001

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