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NBC News

Nutritional supplements and vitamins are more popular than ever. Do they work?

NBC News
Summary
Nutrition label

78% Informative

As many as 100,000 different supplement products are sold in stores and online in the U.S. , the FDA estimates.

Some vitamins, including multivitamins, have been shown to be beneficial in large, randomized clinical trials.

The FDA has limited oversight over supplements after they’re on the market.

The U.S. Preventive Services Task Force advises against taking vitamin D to prevent falls and fractures.

Studies have failed to show that supplements have any miraculous effects on health.

A diet like the Mediterranean diet can lower risks of dementia or heart disease, but supplements usually don’t offer the same benefits.