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wood prints spinach wood prints still life wood prints lutein wood prints zeaxanthin wood prints xanthophylls wood prints carotenoids wood prints food supplement wood prints vision wood prints kale wood prints egg yolk wood prints antioxidants wood prints lipophilic wood prints pill wood prints capsule wood prints nutritional supplement wood prints

photographs spinach photos still life photos lutein photos zeaxanthin photos xanthophylls photos carotenoids photos food supplement photos vision photos kale photos egg yolk photos antioxidants photos lipophilic photos pill photos capsule photos nutritional supplement photos

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Lutein is a xanthophyll and one many naturally-occurring carotenoids. It is present in green leafy vegetables such as kale and spinach as well as in egg yolks, animal fats, and the retina. In the retina, zeaxanthin predominates at the macula lutea whereas lutein predominates elsewhere in the retina. Lutein was traditionally used in chicken feed to provide the yellow color of broiler chicken skin, this also resulted in a darker yellow egg yolk. Lutein is used in the body as an antioxidant and for blue light absorption. It has the molecular formula C40 H56 O2, and Molecular mass 568.87 g/mol. The red softgels shown are 13 mm long. Image width 38.7 mm. Magnification 2.58x if the image is printed 10 cm wide. The softgels are used as a food supplement for healthy vision.