Lutein is concentrated in retinas of eyes and is vital for good vision. It has many positive benefits for the eyes, particularly when compounds lutein and xeaxanthin are mixed. Xeaxanthin helps increase the affect. A diet that is rich in lutein can lower the risk of developing cataracts and macular degeneration. It may also prevent or decelerate atherosclerosis, thickening of arteries, which is one of the major risks for cardiovascular disease. Since it is an antioxidant, lutein removes free radicals from the body. Lutein intake also benefits the cardiovascular system. It also has benefits for skin and keeps it healthy. Lutein can also reduce growth of colon cancer.

Zeaxanthin- There are two carotenoids which are contained between the retinas of the eye. One of them is known as the Zeaxanthin. Zeaxanthin is the dominant compound within the central macula. In the peripheral retina, it is lutein which is predominant. Zeaxanthan is also used as a food dye. Among all the carotenoid aclcohol found in nature, zeaxanthan is the most common one. The characteristic color of saffron, paprika, corn and many other food products comes from zeaxanthin itself. The taste and aroma of saffron is the result of zeaxanthin breaking down into picrocrocin and safranal. Kale, turnip green, collard greens, romaine lettuce, broccoli, zucchini, Brussels sprouts, goji berry, kiwifruit, corn, garden peas, swiss chard are all said to be foods that are rich in zeaxanthin.