Inositol

USE: Inositol, is a water soluble fatty lipid which is part of the Vitamin B family (also know as Vitamin B8). It is closely associated with Choline and is required by the body for the formation of healthy cells. Inositol serves several important functions in the body, comprising part of all cell membranes, contributing to the function of nerves and muscles, and helping the liver process fats. Inositol may also have therapeutic uses in the treatment of certain health conditions such as depression and anxiety. 
SOURCE: You can find dietary inositol naturally in many fiber-rich foods such as beans, brown rice, corn, sesame seeds, wheat bran and grains generally. It can also be found in fruits, legumes and meat.