American Indians used cranberries as a dressing for wounds. The benefit, we know now, lay in the abundant polyphenol content including condensed tannins and smaller OPCs.
Colonial sailors used cranberries to prevent scurvy. Cranberries succeeded due to their rich content of vitamin C and vitamin P constituents (i.e. polyphenols and organic acids).
The cranberry is an antioxidant cocktail.
Super Natural Cran