A nutritional powerhouse, kale is adored by foodies and nutritionists alike.
This cruciferous veggie is loaded with calcium, fiber and cancer-fighting antioxidants and abounds with beta carotene and the compound sulforaphane, which research shows can help protect against certain cancers. The hearty winter vegetable is available in green, purple and dinosaur (so called because of its bumpy leaves) varieties. To prepare it, wash the leaves, then fold in half and cut out the tough center rib. Add the raw leaves to long-simmering soups, or pre-steam before tossing into quick-cooking pasta sauces or salads.