As the winter drolls on it is important to take care of your body and up the ante on good for you greens and immunity boosters. Greens of all varieties, especially dark leafy ones, are full of vitamins A, C, and K and minerals such as iron, calcium, and magnesium. Greens are also full of phytochemicals, the natural components in plants that boost the immune system, reduce inflammation, and prevent and treat oxidative damage. Here are 10 easy way to add them to your diet: