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 Regeneration and Recovery after Acetaminophen Hepatotoxicity PARACETAMOL DEPLETES GLUTATHIONE Natural Healing Centre 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