Unlike laxatives, fiber can truly help regulate bowel patterns. If you choose to take a fiber supplement, be sure you don’t inadvertently purchase a laxative supplement instead. The labels on both types of supplements may say something like “regulates bowel patterns.” While the featured ingredient of fiber supplements will likely be an ingredient such as psyllium, the featured ingredient of laxatives tend to be herbal-based. Such supplements are designed only for short-term constipation.

While there is weak evidence that fiber may promote a feeling of fullness, it seems to be necessary to use it in conjunction with a diet and exercise program in order to be effective for contributing to weight loss.

The best way to get fiber is from food. However, if you don’t include enough fiber-rich food in your diet and choose to use a fiber supplement instead, choose a product that has different types of fiber in it—both soluble and insoluble. When taking a fiber supplement, be sure to stay well hydrated.