Kale is one of the best foods for lutein and zeaxanthin. One of the most common green vegetables in Europe until the 1400s, raw kale has once again become a star in the garden; with more lutein than other greens, it has powerful antioxidant activity and is rich in beta-carotene, vitamin C and zeaxanthin. When chopped, kale also releases a chemical called sulforaphane, which is thought to have anti-cancer properties. This recipe is from Dr. Andrew Weil and his True Food Kitchen in Phoenix.