Datis If you have a sulfur sensitivity, glutathione can be problematic. Glutathione is primarily made up of sulfur, which can cause issues for those with a sulfur sensitivity. While Glutathione is Wine & Broccoli with a Side of Chemistry: Demystifying Sulfur Based Allergies Whole Health Associates, LLC 10. Drug allergy Journal of Allergy and Clinical Immunology Absence of Cross Reactivity between Sulfonamide Antibiotics and Sulfonamide Nonantibiotics New England Journal of Medicine