The colon, a part of the large intestine, extracts water and salts from food residues and sends waste to the anus for elimination. When the colon does not work properly, constipation, diarrhea and other digestive problems occur. Some fruit juices contain substances that promote increased water absorption and increase the bulk of the stool, producing a colon cleansing effect and making it easier to eliminate solid waste.

Prune juice acts as a natural laxative, stimulating the bowel and producing a bowel movement without the harsh effects of laxative pills or colon cleansers. Prune juice has this effect because of the fiber and nutrient content of prunes. One serving of prunes contains vitamin A, potassium, copper and 12.1 percent of the daily recommended intake of dietary fiber. One cup of canned prune juice has 3 grams of fiber.

Dr. Jeffrey Hull, a pediatrician reports that apple juice contains compounds that cause the stool in the colon to retain more water. This adds bulk to the stool and helps move it out of the intestinal tract. This prevents constipation, or relieves existing cases of constipation. Purchase natural apple juice instead of sweetened for fewer calories and less sugar.

Apricots contain sorbitol, which has a laxative effect and prevents constipation. This summer fruit also contains fiber, which enhances its colon cleansing effects. Drink fresh apricot juice to cleanse your colon and increase your intake of potassium, vitamin A and vitamin C.

Another fruit with plenty of fiber, pears help add bulk to the stool, making it easier to eliminate. The Pear Bureau Northwest reports that just one pear contains 6 grams of dietary fiber, or 24 percent of the daily recommended intake. Make pear juice with fresh, whole pears and drink the juice immediately. Store any leftover pear juice in an airtight container to prevent contamination by bacteria and other organisms.

Many people think of orange juice as a good source of vitamin C, but this nutritious drink also provides a colon cleansing effect because of its fiber content. One cup of orange juice made from frozen concentrate has 0.5 grams of fiber. Purchase 100 percent orange juice instead of boxed orange drink to ensure that you get all of the benefits of this juice.