Guar gum is a fiber from the seed of the guar plant.Guar gum is used as a laxative for treating constipation. It is also used for treating diarrhea, diarrhea due to cancer drugs, irritable bowel syndrome (IBS), weight loss, diabetes, a liver disorder in pregnancy (intrahepatic cholestasis of pregnancy), and anal fissures. It is also used for high cholesterol, high blood pressure, and a condition known as "small intestinal bacterial overgrowth." It is also used for preventing drops in blood pressure after a meal (postprandial hypotension). In foods and beverages, guar gum is used as a thickening, stabilizing, suspending, and binding agent.In manufacturing, guar gum is used as a binding agent in tablets, and as a thickening agent in lotions and creams.