Sulfur Intolerance Understanding Sulfur Intolerance: Causes, Sources, and Metabolic Disruption Sulfur is an essential element in human biology, yet for some people it can become surprisingly difficult to tolerate. Sulfur intolerance is not about sulfur being “bad,” but about how efficiently the body can process and convert it into usable forms. Understanding the why behind sulfur intolerance requires looking at metabolism, nutrient cofactors, and environmental exposures. Wh
