Article: FDA WRESTLES WITH CONTROL OVER VITAMINS, SUPPLEMENTS.(Living)

Byline: Sandy Rovner Washington Post

When it comes to vitamins and other food supplements like amino acids, the building blocks of protein, many people mistakenly believe that if a little is good, a lot is better.

Not necessarily, say scientists, who warn that these over-the-counter substances taken alone or in large quantities can have unexpected, and often unwanted, effects.

Although most physicians and groups such as the American Medical Association have discouraged the use of food supplements as unnecessary, some of these substances in purified form are administered by endocrinologists as drugs to treat uncommon metabolic problems that ...

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