What source of inulin will causes digestive upset?

Chicory root

Inulin is a type of dietary fiber that is found in many plants, including chicory root, Jerusalem artichoke, and garlic. It is a prebiotic, which means that it feeds the good bacteria in your gut. Inulin can cause digestive upset, such as gas, bloating, and diarrhea, in some people. This is because the bacteria in your gut ferment inulin, which produces gas. If you are new to eating inulin, it is best to start with a small amount and gradually increase the amount you eat over time. This will help your gut bacteria get used to inulin and reduce the risk of digestive upset.