Inositol (from rice fiber and rice bran)

Inositol is an organic compound closely related to glucose. Inositol can be found in foods such as bran, nuts, beans and fruit 1. Human breast milk is also a rich source of inositol. Inositol can be synthesized in the body to become essential components of cell membrane phospholipids 2. It is approved for use as a food additive by the U.S. Food and Drug Administration (FDA) 3.

Rice fiber is the soluble and insoluble fiber obtained from the bran layer of the rice kernel.

Rice bran is made from the bran layer, underneath the hull layer, of rice, Oryza sativa. Rice bran is high in dietary fiber, and is an excellent source of protein, vitamin E, thiamin, niacin, vitamin B6, pantothenic acid and a number of minerals, such as iron and magnesium. It is also a good source of folate and riboflavin 4. Rice bran also contains beta-sitosterol and other phytosterols, along with the essential omega-3 fatty acid alpha-linolenic acid (ALA) 5.

This ingredient can be found in the following products in United States:


  1. Ensminger AH, Ensminger ME, Konlande JE, Robson JRK. The Concise Encyclopedia of Foods and Nutrition. Boca Raton, Florida: CRC Press, 1995.
  2. Natural Medicines. Comprehensive Database. Therapeutic Research Faculty, 2003.
  3. Food and Drug Administration. EAFUS: A Food Additive Database. 10-17-2008. 12-4-2008.
  4. United States Department of Agriculture. USDA National Nutrient Database for Standard Reference, Release 21. 2008.
  5. Natural Medicines: Comprehensive Database. Stockton, CA: Therapeutic Research Faculty, 2000.