Fiber plays a crucial role in managing weight due to its ability to enhance feelings of fullness and reduce overall calorie intake. High-fiber foods, like fruits, vegetables, and whole grains, slow down digestion, leading to longer-lasting satiety. Additionally, fiber aids in regulating blood sugar levels, which can prevent spikes and crashes that often trigger hunger. Incorporating sufficient fiber into the diet contributes to a well-rounded nutritional approach that supports both weight management and digestive health.