Arugula =  4 Calories per cup... 

This delicate, peppery green is amazingly low in everything you don’t want, especially calories, fat, saturated fat, and cholesterol. It is, however, loaded with crunch and packed with fiber, vitamins A, C and K, and other nutrients, including potassium. 

Perfect in salads, soups, or anywhere you would use leafy greens, arugula may even boost your romantic life! Evidence suggests that the minerals and antioxidants packed into dark, leafy greens are essential for our sexual health because they help block absorption of toxins that dampen the libido.