Two main varieties of Swiss chard are found on store shelves: one with multicolored stems and veins, often called rainbow chard, and another with white stems and veins. Both are great sources of lutein and zeaxanthin, an antioxidant duo that’s good for your eyes. At only 7 calories a cup for raw chard, the green giant is waistline-friendly, too. Cooking tip: To preserve its nutritional might, lightly steam chard and toss with vinaigrette. You can also use the leaves instead of tortillas when making soft tacos.
This Southern favorite contains a wealth of nutritional goodness, including notable amounts of vitamins K and C, folate, and beta-carotene. To boost your daily nutrition, aim to eat about 2 cups of dark, leafy greens like collards every day. Two cups of raw greens is equal to 1 cup of vegetables, and 2.5 cups is recommended daily for a 2000-calorie diet. Cooking tip: Quickly blanch the leaves in boiling water, then chop them and add them to whole-grain or lentil salads.