Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation Fat Soluble Vitamins an overview ScienceDirect Topics Glutathione deficiency induces epigenetic alterations of vitamin D metabolism genes in the livers of high fat diet fed obese mice Scientific Reports 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