Fiber is "the new protein," according to market research firms. But it could also be the new pain in your stomach. If you're like most Americans, you're trying to add more fiber to your diet. That's a ...

Both inulin and psyllium are forms of soluble fiber that have gut health benefits. Inulin is a fermentable fiber found in foods and supplements, and psyllium is a non-fermented fiber supplement.

Inulin and psyllium are two types of soluble fiber that have benefits for digestive health. They have different health benefits, actions on the gut, and potential side effects. Jump to Key Takeaways.