Dark leafy greens like arugula are the closest thing to Mother Nature's multivitamin. Arugula's peppery leaves are enriched with a whole slew of nutrients, including beta-carotene, vitamin C, folate, vitamin K, magnesium, and fiber, that enable the body's cardiovascular, nervous, and digestive systems to function at their optimal levels. It's also a good vegetarian source of calcium
(unlike spinach, arugula is low in oxalates, compounds that can block calcium absorption). Adding arugula to salads is an easy way to give it a try, but I also love this "edgy" green in omelets and sandwiches.