Dietary Supplements information including Ornithine

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Ornithine

Ornithine is an amino acid, whose structure is: NH2-CH2-CH2-CH2-CHNH2-COOH

Ornithine is one of the products of the action of the enzyme arginase on L-arginine, creating urea. Therefore, ornithine is a central part of the urea cycle, which allows for the disposal of excess nitrogen.

Ornithine is not an amino acid coded for by DNA, and in that sense, is not involved in protein synthesis. However, in mammalian non-hepatic tissues, the main use of the urea cycle is in arginine biosynthesis, so as an intermediate in metabolic processes, ornithine is quite important.

Ornithine, via the action of ornithine decarboxylase (E.C. 4.1.1.17), is the starting point for the synthesis of polyamines such as putrescine.

Consult your physician before begining any dietary supplement regimen.

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FEDERAL HEALTH ORGANIZATIONS

Food and Drug Administration (FDA)
FDA regulates dietary supplements under a different set of regulations than those covering "conventional" foods and drug products (prescription and Over-the-Counter). Under the Dietary Supplement Health and Education Act of 1994 (DSHEA), the dietary supplement manufacturer is responsible for ensuring that a dietary supplement is safe before it is marketed. FDA is responsible for taking action against any unsafe dietary supplement product after it reaches the market. Generally, manufacturers do not need to register with FDA nor get FDA approval before producing or selling dietary supplements. Manufacturers must make sure that product label information is truthful and not misleading.

United States Department of Health and Human Services
Thee United States government's principal agency for protecting the health of all Americans and providing essential human services, especially for those who are least able to help themselves.The department has more than 300 programs.

Nutrition.gov
Nutrition and health information on government websites.