What dietary recommendation could help prevent constipation?

Increasing the intake of fiber is a well-established dietary recommendation for preventing constipation. Fiber adds bulk to the stool, which helps it move more easily through the digestive tract. It is found in plant-based foods such as fruits, vegetables, whole grains, and legumes. A diet rich in fiber can stimulate intestinal peristalsis, which is the contraction of the intestinal muscles that helps push food through the gastrointestinal system. Additionally, fiber can enhance water retention in the stool, making it softer and easier to pass, thereby reducing the likelihood of constipation.

In contrast, decreased water consumption can lead to harder stools, making them more difficult to pass and increasing the risk of constipation. A high-fat diet may contribute to other gastrointestinal issues and does not provide the necessary bulk to aid in bowel movements. Similarly, a low-carbohydrate diet might lack adequate sources of fiber, as many carbohydrate-rich foods are also high in fiber, further increasing the risk of constipation. Thus, increasing fiber intake is the most effective recommendation for promoting regular bowel movements.