“[A] nationwide, randomized, placebo-controlled trial, with a two-by-two factorial design, of vitamin D3 (cholecalciferol) at a dose of 2000 IU per day6 and marine n−3 (also called omega-3) fatty acids at a dose of 1 gram per day7 for the prevention of cancer and cardiovascular disease among men 50 years of age or older and women 55 years of age or older in the United States.

Based on those two factors alone, a negative result is precisely what one would predict. Still, despite such limitations, the study actually found some rather remarkable benefits that were simply glossed over.



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