lutein carotenoid molecule. nutrient present in green leafy vegetables such as spinach and kale. atoms are represented as spheres.

antioxidant atomic atoms blindness bond carotene carotenodermia carotenoid chemical chemistry chromophore composition compound degeneration e161b egg feed formula green kale leaf lutein luteine macula macular model molecular molecule nutrient phytochemical plant polyene spinach structure tagetes turnip vegetable watercress xanthophyll yellow yolk