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Dietary supplement
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Dietary supplement : ウィキペディア英語版
Dietary supplement

A dietary supplement is intended to provide nutrients that may otherwise not be consumed in sufficient quantities.
Supplements as generally understood include vitamins, minerals, fiber, fatty acids, or amino acids, among other substances. U.S. authorities define dietary supplements as foods, while elsewhere they may be classified as drugs or other products.
There are more than 50,000 dietary supplements available. More than half of the U.S. adult population (53% - 55%) consume dietary supplements with most common ones being multivitamins.
These products are not intended to prevent or treat any disease and in some circumstances are dangerous, according to the U.S. National Institutes of Health. For those who fail to consume a balanced diet, the agency says that certain supplements "may have value."〔Staff, FDA/ (FDA FAQ's on Dietary Supplements )〕
Most supplements should be avoided, and usually people should not eat micronutrients except people with clearly shown deficiency. Those people should first consult a doctor.〔(Questions To Ask Before Taking Vitamin and Mineral Supplements ), Nutrition.gov, accessed 2013-12-22.〕 An exception is vitamin D, which is recommended in Nordic countries〔(New Nordic Nutrition Recommendations: Focus on quality and the whole diet ), Norden.org 03.10.2013.〕 due to weak sunlight.
==Definition==
According to the United States Food and Drug Administration (FDA), dietary supplements are products which are not pharmaceutical drugs, food additives like spices or preservatives, or conventional food, and which also meet any of these criteria:〔See Dietary Supplement Health and Education Act of 1994, which includes a definition.
*〕
#The product is intended to supplement a person's diet, despite it not being usable as a meal replacement.〔
#The product is or contains a vitamin, dietary element, herb used for herbalism or botanical used as a medicinal plant, amino acid, any substance which contributes to other food eaten, or any concentrate, metabolite, ingredient, extract, or combination of these things.〔
#The product is labeled as a dietary supplement.〔
In the United States, the FDA has different monitoring procedures for substances depending on whether they are presented as drugs, food additives, food, or dietary supplements.〔 Dietary supplements are eaten or taken by mouth, and are regulated in United States law as a type of food rather than a type of drug. Like food and unlike drugs, no government approval is required to make or sell dietary supplements; the manufacturer checks the safety of dietary supplements but the government does not; and rather than requiring risk–benefit analysis to prove that the product can be sold like a drug, risk–benefit analysis is only used to petition that food or a dietary supplement is unsafe and should be removed from market.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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