The Biological Functions of Glutathione Encyclopedia MDPI Dog Safe Snacks: What Foods Are Rich in Glutathione? Earth Buddy Pet Glutathione deficiencies were frequently seen in the sickest patients during the pandemic. This explains why individuals with poor diets, obesity or compromised gut health were more likely to have worse disease. #nac # Our ancestors ate whole animals. Skin, cartilage, tendons, bones, organs. That meant they consumed massive amounts of glycine from collagen rich tissues. Modern humans eat almost exclusively muscle meat, which is extremely high