Cruciferous vegetables, such as kale is known to reduce the risk of a number of cancers, especially lung, colon, breast, ovarian and bladder cancer. This happens as the glucosinolates increase blood flow and nutrients to the anatomical sites. Research reveals that crucifers provide significant cardiovascular benefits as well, just like ancient healers taught. Kale is a great food if you're looking to protect your health and enjoy a delicious food. It is jam packed full of iron and can be eaten raw, steamed or juiced.