Ruth Winter.1978. A Consumer's Dictionary of Food Additives. Crown Publishers, Inc., New York.
Occurs in urine and other body fluids as a product of protein metabolism. Used in yeast food and wine production up to 2 pounds per gallon. Also in fertilizer, animal feeds, in the making of plastics, in ammonated dentifrices, and to known baked goods such as pretzels. Used medicinally to reduce body water and intracranial and eye pressures. No known toxicity. GRAS ACCEPTABLE for packaging.
Excerpts from Bender, Arnold E. 1990. Dictionary of Nutrition and Food Technology. Butterworths, Boston.
The waste nitrogen of most mammals is excreted in the urine as urea, CO(NH2)2. Formed in the liver by the urea cycle and excreted by the kidneys.

Modified and compiled for the FOOD RESOURCE, Public Health and Human Sciences, Oregon State University
Updated: Tuesday, July 3, 2012.