Oligic acid, found in astringent fruits like cranberries and muscadine grapes, is broken down by gut bacteria into urolithin A, which plays a crucial role in stimulating mitophagy in intestinal cells. A healthy gut lining is vital, as stress and toxins can lead to leaky gut, allowing harmful substances into the bloodstream and increasing inflammation. Strengthening these cells is essential for preventing chronic inflammatory and autoimmune conditions.