Cranberry consumption should not be relegated to the annual Thanksgiving dinner. Loaded with proanthocyanidins (a type of antioxidant-rich, free-radical-fighting flavanoid), this crimson-red berry can help cure urinary tract infections (they prevent the bacteria from sticking) and other bacterial diseases with just a daily dose. Besides the benefits for the blood, these tart, cancer-fighting berries are excellent for the mouth. We're not just referring to taste, though they are delicious. Cranberries have been shown to prevent cavities and gum disease.