Certified Dietary Manager (CDM) Practice Exam

How does dietary fiber contribute to health?

1. It increases calorie intake

2. It aids in digestion and promotes regular bowel movements

3. It serves as a protein source

4. It is primarily for taste enhancement

The correct answer is: It aids in digestion and promotes regular bowel movements

Dietary fiber plays a vital role in maintaining overall health, particularly through its effects on digestion and bowel regularity. It helps to add bulk to the stool, which aids the digestive process and promotes regular bowel movements. This can help prevent constipation and contribute to a healthy digestive system. Additionally, fiber can assist in managing blood sugar levels and lowering cholesterol, further enhancing its health benefits. The other options do not accurately reflect the primary functions of dietary fiber. For instance, while calorie intake relates to dietary choices, fiber is known for its low caloric value and its ability to create a feeling of fullness, potentially leading to reduced overall calorie consumption. Fiber does not serve as a protein source and is not added primarily for taste enhancement, as its main benefits are related to digestive health rather than flavor.