Fiber Supplements: Essential Nutrients for a Healthy Digestive System Fiber, also known as dietary fiber or roughage, refers to the parts of plant-based foods that the body can’t digest or absorb. Fibrous foods like fruits, vegetables, whole grains, nuts and seeds provide bulk and serve as prebiotics in the digestive tract.
Types of Fiber
There are two main types of fiber — soluble fiber and insoluble fiber. Both are important for digestive health and...