- Description: Lutein is a carotenoid found in high quantities in the retina (macula) of the eye. It filters harmful high-energy blue wavelengths of light from the sun, and helps to protect and maintain healthy cells in the eyes. The amount of lutein in the macular region of the retina is measured as macular pigment optical density (MPOD). Recently, MPOD has become a useful biomarker for predicting disease and visual function. - Ocular Benefits: A recent study demonstrated that higher dietary intake of lutein and zeaxanthin and vitamin E was associated with a significantly decreased risk of cataract formation. Beyond reducing the risk of eye disease, separate studies have shown that lutein improves visual performance in AMD patients, cataract patients and people in good health. - Sources: dark green leafy vegetables (spinach, kale, and collards), corn, green peas, broccoli, green beans, eggs. To increase the availability of lutein from foods, gently cook or juice greens instead of consuming raw. - Dietary Recommendations (according to the U.S. Food and Drug Administration (FDA)): there is no RDA for lutein. For eye health: 10 mg/day. Lutein