healthy bones leafy greens

3. Dark, leafy greens

 Well, if you’re wondering where those cows get all that calcium, look no further than those heaps of green plants they feed on all day. And since grass isn’t a food we humans typically eat, we have our own that is a little more palatable and chock full of calcium.

Dark, leafy greens, particularly kale and collard greens are not only extremely healthy, but are high in calcium. For instance, one cup of cooked collard greens has 266 mg — a quarter of the amount you need in a day