A dietary supplement, also known as food supplement or nutritional supplement, is defined as a substance 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.
According to the U.S FDA, dietary supplements are products which are not pharmaceutical drugs, food additives like spices or preservatives, or conventional food, and:
Some countries define dietary supplements as foods, while in others they are defined as drugs. The hormones DHEA (a steroid), pregnenolone (also a steroid) and the pineal hormone melatonin are marketed as dietary supplements in the US.
Food fortification is the public health policy of adding micronutrients - essential trace elements and vitamins - to foodstuffs to ensure that minimum dietary requirements are met as simple diets based on staple foods with little variation are often deficient in certain nutrients.
Several ranges of food supplements are recognized:
In the United States, a dietary supplement is defined under the Dietary Supplement Health and Education Act as a product intended to supplement the diet and contains any of the following dietary ingredients:
Furthermore, it must also conform to the following criteria:
:: Human Growth Hormone (HGH) - An Anti-aging Remedy? - HGH has an effect on almost all our tissues and organs, it enhances growth of various organs and tissues, muscle and bone, and increases protein synthesis.
:: Dietary Supplement Shows Promise for Reversing Cardiovascular Aging - Study indicates when people consume a natural dietary supplement called nicotinomide riboside daily it mimics caloric restriction kick-starting the same key chemical pathways responsible for its health benefits.
:: NeoLife Naturally Sourced CoQ10 Supplement - NeoLife CoQ10 uses advanced biogenic technology to source natural pharmaceutical grade CoQ10, delivered in a highly bioavailable form, supporting heart health and cellular energy.
:: Phytoceramides: Facelift in a Phyto350 Pill - Phytoceramides are plant-derived molecules that can replace lost ceramides giving new structure to the skin that fills in wrinkles and fine facial lines.