What to Avoid When Taking Glutathione: Key Tips Early life acetaminophen exposure, glutathione S transferase genes, and development of adolescent asthma in a high risk birth cohort Journal of Allergy and Clinical Immunology Heres why you should avoid Tylenol , First of all, it is full of colorful dyes, sugars, and additives., But the main reason is it depletes glutathione., Glutathione is one of the most Acetaminophen, also known as Tylenol, is used to help with pain & to reduce fever. However, taking too much acetaminophen can be harmful to the liver which filters out toxins &