The causes of leaky gut stem from various factors, with diet playing a significant role. Inflammatory foods such as gluten, dairy, refined sugars, and nightshades can weaken the gut lining, while toxic substances like alcohol, artificial sweeteners, and processed foods exacerbate the issue. Chronic stress, environmental toxins, and gut infections like Candida overgrowth or SIBO further contribute to increased intestinal permeability. When the gut barrier is compromised, undigested food particles and toxins leak into the bloodstream, triggering immune responses that may lead to inflammation and autoimmune diseases. Identifying and eliminating these triggers is crucial for gut health restoration.