Recommended by gastroenterologists for over 30 years. Active Ingredients: Supplement: Per 3.7 g (1 Rounded Tsp.): Calories 10; Sodium 3 mg; Total Carb. 3 g (Dietary Fiber 3 g [Soluble Fiber 2.4 g]; Sugars 0 g); Calcium 6 mg; Iron 0 mg; Psyllium Husk (Psyllium Hydrophilic Mucilloid); Polyethylene Glycol; Povidone. Laxative: Per Rounded Teaspoon: Psyllium Seed Husks Approximately 3.5 g Inactive Ingredients: Laxative: Polyethylene Glycol; Povidone Uses: Supplement: Diets low in saturated fat and cholesterol that include 7 grams of soluble fiber per day from psyllium husk, as in HYDROCIL INSTANT, may reduce the risk of heart disease by lowering cholesterol. One ADULT dose of HYDROCIL INSTANT has 2.4 grams of this soluble fiber. Laxative: For relief of occasional constipation (irregularity). This product generally produces bowel movement in 12 to 72 hours. Dissolves instantly. No sugar, artificial flavors, colors or sweeteners. Safe for diabetics.