Hydrogen Sulfide When discussing SIBO, most conversations focus on hydrogen and methane. But there’s a third gas gaining attention in scientific research: hydrogen sulfide (H₂S). Unlike methane, hydrogen sulfide is biologically active. It doesn’t just cause odor — it interacts directly with cellular systems. And in excess, that interaction matters. 🧪 What Is Hydrogen Sulfide? Hydrogen sulfide is produced by certain gut bacteria, particularly when they break down sulfur-conta

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