Vitamin D supplements prevent cancer

A recent study in the American Journal of Clinical Nutrition found that Vitamin D plus calcium supplementation can probably reduce the risk of all forms of cancer by about 75%. That is the conclusion of the Life Extension Foundation: "When subjects whose cancers were diagnosed during the first year of the study were excluded from the analysis, due to the possibility that their cancers were pre-existing upon enrollment, the reduction in risk associated with calcium plus vitamin D was further lowered to 77 percent less than the placebo group."

The study participants received 1100 I.U. of vitamin D3 and 1400 milligrams of calcium from calcium citrate.

The abstract can be read here. The evidence that most Americans aren't getting enough vitamin D for optimum cancer prevention is growing. I'll cover that in a future post. Sunlight in moderation can create a large amount of vitamin D in the skin. We have become so afraid of skin cancer, we may be inviting cancer by practicing extreme avoidance.