Jerusalem artichoke (Helianthus tuberosus) packs high levels of inulin, a prebiotic fiber that feeds the good bacteria living in your gut. People cook the root like any other vegetable or stir powdered extract into water or food.
When you first start eating it, the fiber load often triggers gas, bloating, and stomach upset. Anyone sensitive to FODMAPs should steer clear. Introduce it slowly and pay attention to how your body reacts.