Which food is your favorite? Glutamine, known almost interchangeably as L Glutamine in the sports world, is the most abundant amino acid found in the body. It's a non essential amino acid, meaning the Tylenol depletes glutathione your liver's most important protective antioxidant. Every dose chips away at it. So instead of taking lower doses every 46 hours, I recommend spacing to 1000mg every 8 hours. NAD vs Glutathione: Key Differences and Benefits Explained Goldman As a naturopathic doctor and a mom, Tylenol is a hard no in my house and I want to explain why. , , Acetaminophen (Tylenol) is processed through the liver, and in that process it can lower