Clinical Nutritionist Practice Test 2025 - Free Practice Questions and Study Guide

Dietary fiber is primarily classified as a type of carbohydrate, but it differs from other carbohydrates because it is not digestible by human enzymes. Its main functions in the human body include promoting healthy digestion and aiding in the regulation of blood sugar levels.

Fiber contributes to digestive health by adding bulk to the stool, which helps to facilitate regular bowel movements and prevent constipation. Additionally, dietary fiber can help to lower cholesterol levels and may reduce the risk of developing certain chronic diseases, such as heart disease and type 2 diabetes.

Furthermore, dietary fiber can be divided into two categories: soluble fiber and insoluble fiber, both of which play important roles in digestive health. Soluble fiber can dissolve in water and is found in foods like oats and beans, while insoluble fiber does not dissolve and is found in whole grains and vegetables.

Recognizing fiber's unique role as a carbohydrate that supports various bodily functions is key to understanding its importance in a balanced diet.