Cranberries have a long history of culinary use in Europe and North America and have been employed by traditional herbalists for centuries. Cranberries are packed with polyphenols, tannins, and other phytonutrients that have been researched for their role in urinary tract health and supports immune health. Cranberries are also rich in Vitamin C and dietary fibers. Cranberry extract help with bladder and kidney issues. The proanthocyanidins in cranberries may also benefit oral health.