ISSA Nutritionist Practice Exam

Which type of food could be classified as a source of dietary fiber?

1. Meat

2. Dairy products

3. Whole grains

4. Processed sugars

The correct answer is: Whole grains

Whole grains are an excellent source of dietary fiber, which is crucial for maintaining healthy digestion and preventing various chronic illnesses. They contain both soluble and insoluble fiber, promoting regular bowel movements, aiding in weight management, and contributing to heart health by helping lower cholesterol levels. Foods like oats, brown rice, quinoa, and whole-grain bread provide significant amounts of fiber, thereby playing a vital role in a balanced diet. In contrast, meat and dairy products contain negligible amounts of dietary fiber, as they primarily consist of protein and fat. Processed sugars, which are refined and stripped of essential nutrients, including fiber, do not contribute to dietary fiber intake. Therefore, whole grains stand out as the correct choice for dietary fiber sources.