Understanding the Difference: What Vitamins Contain Sulfa?
•
4 min read
It is a common misconception that individuals with a sulfa drug allergy must avoid foods and vitamins containing the essential mineral sulfur. The question, 'What vitamins contain sulfa?' often arises from this concern, yet the two are chemically distinct and pose no cross-reaction risk. This article clarifies the science behind sulfa drugs, identifies which vitamins naturally contain sulfur, and provides reassuring dietary guidance.