Inulin is a soluble fiber found in 36,000 plant species (wheat, onion, banana, garlic, asparagus, etc.) and in some bacteria and fungi. The chicory roots are the richest source of inulin. Several manufactured forms of inulin are Chicory inulin and High-Performance (HP) inulin. In 2018 the FDA approved inulin as a dietary fiber component used to increase the nutritional value of processed food products in the United States. Inulin stimulates growth of beneficial bacteria, which in turn helps improve bowel function and gut health, curb appetite, and boosts immunity.