Like foods and unlike drugs, no government approval is needed to make or offer dietary supplements; the manufacturer confirms the security of dietary supplements but the government does not; and rather than requiring riskbenefit analysis to show that the product can be offered like a drug, such evaluation is just used by the FDA to decide that a dietary supplement is hazardous and need to be eliminated from market.

offer a large variety of vitamin dietary supplements A vitamin is an natural substance needed by an organism as a vital nutrient in limited quantities. An organic chemical substance (or associated set of substances) is called a vitamin when it can not be manufactured in adequate amounts by an organism, and should be obtained from the diet.

For instance, ascorbic acid (vitamin C) is a vitamin for anthropoid primates, humans, guinea

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