Cranberry fruits contain proanthocyanidins. These are believed to help promote healthy functioning of the urinary tract and kidneys. Cranberries may also support healthy teeth and gums as well as aid memory and stomach health.

Cranberries are commonly found growing in bogs and prefer cooler temperatures. The evergreen creeping shrubs grow low to the ground and up to 2 meters long. It has a small leaf and produces berries, which turn bright red when ripe. Harvest usually takes place by either flooding the beds, and the floating cranberries are corralled together to be collected for harvest or by dry harvest in which the fruit is combed from the vines.