What is fiber classified as?

Fiber is classified as a type of complex carbohydrate. Complex carbohydrates are composed of long chains of sugar molecules and include fibers that the body does not digest in the same way it digests sugars and starches. Unlike simple carbohydrates, which provide quick energy, fiber is crucial for digestive health as it helps regulate bowel movements and can contribute to a feeling of fullness.

In the context of diet and nutrition, fiber can be found in plant-based foods such as fruits, vegetables, whole grains, and legumes. The health benefits of fiber extend beyond digestion; it plays a role in reducing cholesterol levels and maintaining steady blood sugar levels, which is particularly beneficial for disease prevention.

Regarding the other classifications: simple carbohydrates are sugars that provide quick energy, proteins serve as building blocks for tissues, and lipids refer to fats. These definitions reinforce why fiber fits squarely into the category of complex carbohydrates rather than any of the other classifications.