I differentiate between water soluble and fat soluble vitamins. Water soluble vitamins like B complex and C dissolve in water, are not stored, and are excreted. Conversely, fat soluble vitamins (A, D, E, K) require dietary fat I've recently re discovered Alpha Lipoic Acid! Its called the universal antioxidant because its the only known antioxidant that is both fat soluble, AND water soluble; which allows it to work throughout the 28.5 Vitamins Organic and Biochemistry Supplement to Enhanced Introductory College Chemistry Liposomal Glutathione Uses and Benefits BodyBio Vitamins: Water and Fat Soluble The Medical Biochemistry Page Amazon.com: Glutathione Supplement, Pure Glutathione Reduced Powder with Inositol, 5 Ounce (9 Months Supply), 2 in 1 Formula, Powerful Ingredients for Antioxidants, Supports Liver Function, Vegan : Health & Household