What is Dietary supplement?
[[File:Iodine pills.jpg|thumb|''As a pill'']] A '''dietary supplement''' (or '''food supplement''' or '''nutritional supplement''') is anything taken by mouth which helps [[wikt:enhance|enhance]] [[food]] that a person or animal [[eat]]s. It can be in [[pill]], [[powder]], or a [[liquid]] form. The supplement provides [[nutrient]]s such as [[vitamin]]s, [[mineral]]s, [[fiber]], [[fatty acid]]s, or [[amino acid]]s. People may want to take supplements because they may not have enough nutrients in their body or may want to get more [[health]]ier. Some countries define supplements as food. Others define them as [[drug]]s or natural health [[product (business)|products]]. [[Bodybuilding]] supplements are dietary supplements for those involved in bodybuilding and [[athletics (sport)|athletics]]. These supplements can help with weight gain or weight loss, or to improve their [[performance]]. == Sources of advice == <!-- PLEASE DO NOT ADD LINKS TO COMMERCIAL SITES OR PSEUDO-SCIENTIFIC CLAIM SITES. --> * [http://www.naturalstandard.com/ Natural Standard Research Collaboration] * [https://www.nlm.nih.gov/medlineplus/druginfo/herb_All.html Dietary Supplements Labels Database], from the United States National Library of Medicine * [http://ods.od.nih.gov/Health_Information/IBIDS.aspx International Bibliographic Information on Dietary Supplements database] from the U.S. [[National Institutes of Health]] Office of Dietary Supplements and [[USDA]] National Agricultural Library * [http://www.cfsan.fda.gov/~dms/supplmnt.html Dietary Supplement Information] {{Webarchive|url=https://web.archive.org/web/20001017130852/http://www.cfsan.fda.gov/~dms/supplmnt.html |date=2000-10-17 }} from the U.S. Food and Drug Administration * [http://nccam.nih.gov/health/bottle/ What's in the Bottle? An Introduction to Dietary Supplements] {{Webarchive|url=https://web.archive.org/web/20110506143259/http://nccam.nih.gov/health/bottle/ |date=2011-05-06 }}, from the U.S. National Center for Complementary and Alternative Medicine * [http://www.iom.e