home vitamins, herbs, dietary supplements a-z list inulin. Inulin is not digested or absorbed in the stomach. It goes to the bowels where bacteria are able to use it to grow. It supports the growth of a special kind of bacteria that are associated with improving bowel function and general health.Inulin decreases the body's ability to make certain kinds of fats.ome vitamins, herbs, dietary supplements a-z list inulin. Inulin is not digested or absorbed in the stomach. It goes to the bowels where bacteria are able to use it to grow. It supports the growth of a special kind of bacteria that are associated with improving bowel function and general health.