The gut’s “best friend” is not a single product—it is a lifestyle pattern that consistently feeds and protects the microbiome. First: diverse fiber and routine. Fiber increases stool bulk, improves softness, and fuels short-chain fatty acid production by beneficial microbes. Second: water plus movement. Hydration shapes stool consistency; walking stimulates intestinal contractions. Third: sleep and stress control—stress signaling can heighten gut sensitivity, so sleep quality matters as much as food choices. Fourth: fermented foods and prebiotics. Yogurt/kefir and fermented vegetables may improve comfort for some; prebiotics (oats, legumes, onions/leeks) selectively feed beneficial microbes. Fifth: tolerance management. Not every fiber suits every person; if you bloat easily, increase fiber gradually and identify the types you tolerate best. Finally, sustainability wins: avoid extreme “detox” cycles and focus on weekly structure, regular meals, adequate protein/micronutrients, and controlled sugar/alcohol exposure.