AFAA Personal Trainer Certification Practice Exam

Which food sources are rich in soluble fiber?

1. Whole grains and legumes

2. Carrots and broccoli

3. Fruits, vegetables, and oats

4. Meat and dairy products

The correct answer is: Fruits, vegetables, and oats

The correct answer highlights that fruits, vegetables, and oats are particularly rich in soluble fiber. Soluble fiber dissolves in water to form a gel-like substance, which can help slow digestion and promote a feeling of fullness. It also benefits heart health by helping to lower blood cholesterol levels and stabilize blood glucose levels. Fruits such as apples, oranges, and pears are notable for their soluble fiber content, primarily in the form of pectin. Vegetables like carrots also contain soluble fiber, but they are not as high in it as the fruit category. Oats include a specific type of soluble fiber known as beta-glucan, which has been associated with various health benefits including cholesterol reduction. In contrast, whole grains and legumes primarily provide insoluble fiber, which aids in digestion and helps prevent constipation. Meat and dairy products do not contain fiber, as they are animal-based foods. Thus, focusing on the sources that specifically provide soluble fiber underscores the importance of incorporating fruits, vegetables, and oats in a diet aimed at improving heart health and managing glycemic responses.