The Nutrition Bay - Constipation is a common problem that affects many people, and it can be caused by a variety of factors, such as a lack of physical activity, dehydration, or a diet that is low in fiber. When it comes to preventing or treating constipation, increasing your intake of high fiber foods is one of the most effective strategies. Fiber is a type of carbohydrate that your body can't digest, and it helps to add bulk to your stool and promote regular bowel movements. In this article, we'll discuss some of the best high fiber foods for constipation.