Constit. of crustaceans, fish, barley, maize (Zea mays), tomatoes, paprika pods, hen egg yolk, fruits and numerous green vegetables. Potential nutriceutical for treatment of age-related macular degeneration of the eye (AMD) [DFC] Zeaxanthin is one of the two primary xanthophyll carotenoids contained within the retina of the eye. Within the central macula, zeaxanthin is the dominant component, whereas in the peripheral retina, lutein predominates. The principal natural form of zeaxanthin is (3R,3'R)-zeaxanthin. As a food additive, zeaxanthin is a food dye with E number E161h. [Wikipedia]