Kale – The King of Vegetables Broccoli has enjoyed huge wraps for its nutritional value and because it contains a cancer-fighting compound called sulforapane. Kale’s sulfuropane levels are similar to broccoli and in addition kale has six times more vitamin A, seven times more vitamin K, 150% more calcium, seven times more beta-carotene and eleven times more lutein than broccoli. Kale is also an excellent source of vitamin C, B1, B2, B6 and E. It contains copper, and iron. The combination of vitamins, minerals and phyto-nutrients makes kale a health superstar.