Vitafusion FiberWell Fit (90 Gummies) A Sugar-Free Way to Get Your Fiber Fiber is an essential part of a healthy diet, but many of us fall short of getting enough each day. Not to worry, now you can get the fiber you need to help maintain and support your digestive health* in one sugar-free gummy supplement! Each serving contains 4 grams of prebiotic plus B Vitamins to support energy metabolism*.