Fiber, specifically dietary fiber, is a complex carbohydrate found mostly in plant-based foods. When it comes to fiber, there are two types—insoluble and soluble—and each one functions differently in our body.

Soluble fiber is mostly found in beans, legumes, nuts, oats, barley, and some fruits and vegetables. Insoluble fiber is typically found in whole grains, wheat bran, and vegetables. Soluble fiber pulls water into your gut, turning it into a gel. This slows digestion and helps you to feel fuller longer. Insoluble fiber supports your gut health and helps keep things “moving along.” In other words, it eases constipation.