Insoluble fiber supplements like wheat bran, corn bran, and flaxseed can help add bulk to stool and promote regular bowel movements. FiberCon and Citrucel are popular insoluble fiber supplements ...

Insoluble fiber, on the other hand, does not dissolve in water and adds bulk to stool, making it easier to pass. Some fiber supplements contain both types of fiber, while others only contain one.

Fiber supplements are another solution to constipation. Research has found that fiber supplementation effectively improves ...