1) Per calorie, kale has more calcium than milk.
2) One cup is filled with 10% of the RDA (Recommended daily/dietary allowance) of omega-3 fatty acids.
3) High in vitamin K. A diet high in Vitamin K can help protect against various cancers.
4) Per calorie, kale has more iron than beef.
5) High in Vitamin A, C and antioxidants, which is great for your immune system, vision & skin.