Leaky gut is the colloquial term for increased intestinal permeability - when the tight junctions between intestinal cells weaken allowing bacteria, toxins, and undigested food particles to pass into the bloodstream. Leaky gut is strongly associated with IBS, food sensitivities, inflammatory bowel disease, autoimmune conditions, metabolic syndrome, and skin conditions like eczema. Restoring gut microbiome balance is one of the most effective evidence-based strategies for repairing gut barrier function.