What is choline bitaratecholine is a water soluble b vitamin which can be produced in the human body but natural quantities are often insufficient natural sources of choline include egg yolk legumes wheat germ peanuts and organ meats bitarate is added to the choline to enhance the absorption rate within the human bodycholine bitarate benefitscholine is used to make acetylcholine which contributes to normal lipid metabolism the maintenance of normal liver function and normal homocystein