10 Things you Need to Know before Popping Vitamins

Vitamins A, B, C, D, and E are incredibly popular, and consumers spend hundreds of millions of dollars a year on products that contain them. True vitamin deficiencies, except for Vitamin D, are rare.

A new study just published in JAMA Cardiology, by researchers in New Zealand, has shown that monthly intake of high-dose Vitamin D did not prevent cardiovascular disease. When compared with a placebo, vitamin D serum levels went up much more in the group taking D, but the chance of developing coronary disease was the same over three years, just under 12 percent for both groups.

Vitamin D has also been studied for cancer prevention. A recent trial, published in JAMA, looked at Vitamin D3 2,000 IU a day compared with a placebo and showed no effects on cancer rates.

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