Health experts have stated that good gut health begins with diet, not just digestion, but also affects the immune system, energy, and mood. Danielle Hovannisian, a clinical dietitian with St. Agnes Medical Center, said that diet plays a significant role in maintaining a healthy balance of bacteria in the gut. Foods rich in fiber can promote digestive health and probiotic foods can support the gut by feeding beneficial bacteria already in the body. Experts recommend limiting highly processed foods and maintaining consistent, healthy eating habits.