I have read that cranberries are really good for nutritional benefits, urinary health and even preventing ulcers. Only recently has research actually identified the compound that appears to promote urinary tract health.
Cranberries contain proanthocyanidins.
These compounds prevent bacteria from sticking to the cells that line the urinary tract and help prevent infection. New findings also suggest that these compounds may be effective against H. pylori, the bacteria that causes some ulcers. Fresh and frozen, unsweetened cranberries provide a good source of fiber and vitamin C. Canned cranberries are more processed and usually have sugar added. When choosing cranberry juice, look for 100 percent juice, as many cocktails and blends add some form of sugar. Many cranberry juices are fortified with vitamin C, but provide less fiber than fresh.