Fruits that contain skin and seeds, such as apples, pears, raspberries and strawberries, may prevent and treat constipation because of their fiber content, according to the Cleveland Clinic. Prunes or dried plums are also good for constipation. Prunes contain fiber and sorbitol, which acts as a laxative, notes WebMD.
Constipation occurs when someone experiences less than three bowel movements a week or when bowel movements become difficult to pass, according to the National Institute of Diabetes and Digestive and Kidney Diseases. The most common reason behind constipation is a diet low in fiber. In addition to eating fruit, people can increase the amount of fiber they consume by eating foods such as beans, whole-wheat cereal and green, leafy vegetables.