What is it?PE Nutrition Choline and Inositol tablets support normal lipid metabolism and liver function. Choline and Inositol are essential components of cell walls.Contains Essential Components of Cell Walls Contributes To Normal Lipid Metabolism and Liver Function Suitable to Vegetarian and Vegan Diets What Are the Benefits of This Supplement?Although not strictly a Vitamin, Choline is a vitamin-like water-soluble essential mineral. It was believed to be a B Vitamin at one point, which is why you may see it referred to as Vitamin B4 or grouped in with the other B Vitamins. Choline contributes to normal lipid metabolism and liver function.