Choline belongs to the soluble in liquids group of B vitamins. It is an organic nitrogen base containing lecithin, and acetylcholine. Together with inositol is involved in the metabolism of fats and cholesterol metabolism, preventing its accumulation on the walls of arteries and deposits in the gallbladder. With the penetration of the brain, contained lecithin improves its action and improves memory. Used in the treatment of age-related diseases (Alzheimer's). It occurs in plant foods: yeast, wheat germ, lecithin, green leafy vegetables and egg yolks.