- If one is low on stomach acidity, food isn’t broken down very well. - When one has a leaky gut, these ill-digested foods can end up in the bloodstream, leading to food allergies and autoimmune conditions. - Stomach acid has another role - killing pathogens. If the stomach acid isn’t strong enough, pathogens will thrive, and they can breach the intestinal walls referred to in the clip above - particularly if one’s diet is poor, with the inevitable consequences of predisposition to conditions caused by leaky gut disease.