Cranberries possess more phenols than red grapes and 18 other fruits, according to a study in the Journal of Agriculture and Food Chemistryin 2001. Phenols are plant chemicals that lower oxidation of LDL ("bad") cholesterol. Cranberries also make it hard for bacteria to stick around – literally. Researchers believe that proanthocyanins in cranberries prevent the bacteria E. coli from attaching to bladder walls and causing urinary tract infections.
(Source: Natural Health magazine, March 2003.)