Arrowroot is a plant. People use starch taken from the root and rhizome (underground stem) to make medicine. Arrowroot is used as a nutritional food for infants and for people recovering from illness. It is also used for stomach and intestinal disorders, including diarrhea. Some people sooth painful gums and sore mouth by applying arrowroot directly to the affected area. Babies cut teeth on arrowroot cookies. In foods, arrowroot is used as an ingredient in cooking. Arrowroot is often replaced like starches, including potato, corn, wheat, or rice starch
