Leafy greens are some of the most nutrient-dense ... Arugula, sometimes called "rocket," is a peppery green that's rich in nutrients and low in calories. According to the USDA, two cups of raw ...
Cruciferous items, including watercress, Chinese cabbage, collard greens, kale and rocket — as well as leafy greens, like silverbeet, spinach, leaf lettuce and chicory which is known as witlof ...