HyFiber for Kids is a clear liquid soluble fiber that contains FOS prebiotics, which feeds the good bacteria in a childs gut to promote a regular, healthy digestive system. HyFiber for Kids is a safe and effective way to increase your childs fiber intake without large quantity servings. One-tablespoon (1/2 fluid ounce) contains 6 grams of fiber, which is more than most leading brands.It is great for busy families since you do not have to mix it with other products, and it does not require refrigeration.Help to manage constipation during potty training.