Dietary supplements are big business: a $20 billion-plus industry in the United States. Tens of thousands of products line the shelves of grocery, drug and health food stores - with about 1,000 new choices introduced each year.

But the U.S. government says up to a fifth of supplements make questionable claims, and it's identified some 300 diet products as outright fraudulent.

Face the Facts USA delivers provocative facts about big issues to help Americans debunk myths, hold better conversations, get involved, and make choices as smarter citizens. For more information, visit facethefactsusa.org.

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