High fiber diets positively affect digestion by promoting regular bowel movements and preventing constipation. Fiber adds bulk to the diet, facilitating smoother passage through the digestive tract and supporting gut health. Soluble fiber, found in foods like oats and legumes, can help lower cholesterol levels and regulate blood sugar. Furthermore, fiber-rich foods often require more chewing, which aids in the digestive process and contributes to a feeling of fullness, potentially preventing overeating. Incorporating a variety of fiber types into daily meals is an effective way to enhance digestive health.