Collard greens, a specialty of the Deep South, are a cool-season vegetable similar in appearance to cabbage. The broad, blue-green leaves are packed with vitamins A, C and K and fiber. Since the vegetable is fairly tough, the leaves are typically slow-cooked. If you pick young leaves, however, you can chop them up into a fresh, low-calorie salad.
One cup of raw, chopped collard greens has only 12 calories. A cup of boiled collards, which is more compact, contains 63 calories.
If you simply steam, boil or eat collard greens raw, they are very low in calories. Adding the traditional bacon or ham hocks to your recipe will quickly increase the calorie count, however. To keep your greens healthy, use turkey bacon, onions and garlic for a flavorful side dish.