Prebiotic Fiber Supplement Sugar-free. Gluten-free. New look! Nourishes good bacteria. Great tasting & sugar-free! No water required. Benefiber Chewable Tablets - all the goodness of benefiber in a great-tasting easy to take chewable tablet! Benefiber is a plant based prebiotic fiber. What is Prebiotic Fiber? Prebiotic fiber strengthens and nourishing the good bacteria in your gut to support an environment for good digestive health. What's good for your gut is good for you. Benefiber guarantees your satisfaction or your money back. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.).