You already know cruciferous vegetables—broccoli, cauliflower, brussels spouts and cabbage—are good cancer fighters. They've also been shown to help aid the detoxification processes of the liver.

While you're at it, it's also important to have foods loaded with vitamins B, like whole grains, and C, like citrus fruits and leafy green vegetables. They, too, have been shown to aid the detoxification process by helping your innate antioxidant system.