How does fiber benefit the digestive system?

Fiber plays a crucial role in supporting the digestive system primarily through its ability to aid in regular bowel movements. It adds bulk to the stool, which helps to stimulate the intestines, promoting movement through the digestive tract. This is essential for maintaining a healthy digestive system as it prevents constipation and supports overall gut health.

When fiber is consumed, it absorbs water and increases in volume, making the stool softer and easier to pass. This bulk-forming action is particularly important for individuals who may struggle with irregular bowel movements or constipation. Additionally, fiber can help regulate the speed at which food moves through the digestive tract, allowing for better nutrient absorption and reducing the risk of digestive disorders.

While fiber contributes to various health benefits, its specific impact on regularity in bowel movements distinguishes it as a key component for digestive health. The other options mention energy supply, fat absorption, and hydration but do not directly correlate with the primary function of fiber in digestion.