What role does fiber play in a diet as indicated on food labels?

Fiber plays a significant role in a healthy diet, particularly in terms of aiding digestion and increasing meal satiety. When considering food labels, the inclusion of fiber can indicate several health benefits.

Aiding digestion is one of the primary roles of fiber. It adds bulk to the stool and helps keep the digestive tract functioning well, preventing constipation and promoting regular bowel movements. This is crucial for overall gut health and can contribute to a reduced risk of developing various digestive disorders.

Additionally, fiber is known to increase meal satiety, which is the feeling of fullness after eating. High-fiber foods tend to be more filling, allowing individuals to feel satisfied without needing excessive calories. This can be beneficial for weight management, as it may help prevent overeating.

When both digestion and satiety are considered, it becomes clear why the option highlighting these two functions is the most comprehensive. Fiber's role in both aiding digestion and increasing satiety underscores its importance in a balanced diet, making option D the correct choice.