Relieves constipation (irregularity). Helps to restore and maintain regularity. For constipation associated with other bowel disorders like IBS when recommended by a doctor. Generally produces a bowel movement in 12-72 hours. Citrucel is unique because it is: gentle and clinically proven effective; the only fiber that won't cause excess gas like other fiber products*; 100% soluble, non-allergenic and gluten-free. Each heaping tablespoon contributes 60 calories from sucrose and maltodextrin. *Based on laboratory testing. Individual results may vary.Active Ingredients: 1 Heaping Tablespoon: Methylcellulose 2 g (a Non-Allergenic Fiber)