wow.gm - Choline is an essential nutrient but not, strictly speaking, a vitamin although it is often mistakenly thought of as a member of the B complex, with which it has numerous functions in common. Choline should be found in abundance in a normally healthy diet, but deficiencies have been linked with cardiovascular and liver disease, as well as impaired cognitive function. Until as recently as 1998 it was believed that the body could manufacture an adequate supply of choline from the closely...» view full story