Heavy Metals & Bile Function Why gut healing can stall even when digestion looks “normal” When people talk about heavy metals and gut health, the conversation usually stops at inflammation, leaky gut, or microbiome imbalance. What’s far less discussed — yet critically important — is bile signaling . Bile isn’t just a digestive fluid for breaking down fats. It functions as a biochemical signaling system , coordinating communication between the liver, gut lining, immune system,