Anyone have a sulfa allergy? If so, what are your symptoms? 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 SULFA VERSUS SULFUR ALLERGY AND SENSITIVITY CONT Consult Dr. Anderson Sulfonamide Allergies A Revealing Look Into Sensitivities to Sulfur and Sulfide Minerals