This tender vegetable has been a luxurious epicurean delight for hundreds of years. One cup provides more than half of your daily requirement for vitamin K, which plays an important role in blood clotting and maintaining bone strength
. Asparagus is also a good vegetarian source of iron, which helps keep your bones, hair, and nails strong. Serve a side of steamed, roasted, or grilled asparagus with dinner, or toss bite-sized pieces into salads and omelets for extra crunch.