Nothing beats calcium for your bones. Sure, you can get it from dairy, but it’s also found in lots of vegetables. Why not do both? One great choice: dark leafy greens such as bok choy, Chinese cabbage, kale, collard greens, and turnip greens. One cup of cooked turnip greens has about 200 milligrams of calcium (20% of your daily goal). On top of that, dark greens also have vitamin K, which can reduce your risk for osteoporosis.