Nutrients: Deep-coloured greens (kale, collards, Swiss chard) are nutritious and low calorie; experts consider them among the most healthful foods on the planet. Greens are high in fibre and are packed with minerals, vitamins and antioxidants.
Danger: Restaurants often load their greens with butter, bacon or cheese. Limit those, and they’ll remain healthy.
Ideas: For a tasty soup, chop and simmer them for an hour in water or low-sodium chicken broth with chopped onions, garlic, a splash of vinegar and lots of pepper. Sautéing greens is also good, but go easy on the oil.