UNDATED (AP) - Millions of Americans take vitamin, herbal or other dietary supplements. There's debate over whether they do any good. But are they good for you?
Are they safe? Is what's on the label really what's in the bottle? Tests by researchers and private labs suggest the answer sometimes is no.
One quarter of supplements tested by an independent company over the last decade have had some sort of problem. Some contained contaminants. Others had contents that did not match label claims. Some had ingredients that exceeded safe limits. Some contained real drugs masquerading as natural supplements.
Industry groups say that quality problems are the exception rather than the rule, and that well-established and reputable brands deserve their reputation.
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