Chinese Study Links High Vitamin D Levels to Greater Risk of Prostate Cancer

Chinese Study Links High Vitamin D Levels to Greater Risk of Prostate Cancer
A high concentration of the major circulating form of vitamin D — also known as 25[OH]D or calcifediol — correlates with high risk of prostate cancer, found researchers at the First Hospital of Jilin University in Changchun, China. Their study, “Circulating vitamin D concentration and risk of prostate cancer: a dose–response meta-analysis of prospective studies,” appeared

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  1. Prostate cancer is sometimes associated with vitamin D levels, and at other times it is not. There are other studies that show a U-shaped curve, with reduction in prostate cancer risk with an increase in vitamin D levels, and then and increase in risk as the levels increase. One thing we do know, is that increasing sun exposure is associated with a reduction in the risk of prostate cancer, regardless of vitamin D levels. Non-burning sun exposure is a must for human health. More information on Sun exposure and health:

  2. Neal Snyder says:

    What do they mean by a high vitamin D level? What I’ve read before suggested that maintaining a level in the 50s or 60s is protective, & also that taking 10,000 IU is safe. This type of story is very unhelpful because it doesn’t specify whether the risky level is higher than this, or if they are contradicting what I’ve read before.

    Also, do they say anything about men who have prostate cancer? What I read is that men with low levels survive less long that men with middle levels, & men with higher levels survive longest. Nothing was said about whether the level could be TOO high.

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