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  2. Age-Related Eye Disease Study - Wikipedia

    en.wikipedia.org/wiki/Age-Related_Eye_Disease_Study

    The Age-Related Eye Disease Study (AREDS) was a clinical trial sponsored by the National Eye Institute that ran from 1992 to 2001. [1] The study was designed to: investigate the natural history and risk factors of age-related macular degeneration (AMD) and cataracts, and. evaluate the effects of high doses of antioxidants and zinc on the ...

  3. Zeaxanthin - Wikipedia

    en.wikipedia.org/wiki/Zeaxanthin

    Zeaxanthin is one of the two primary xanthophyll carotenoids contained within the retina of the eye. Zeaxanthin supplements are typically taken on the supposition of supporting eye health. Although there are no reported side effects from taking zeaxanthin supplements, the actual health effects of zeaxanthin and lutein are not proven, [5][6][7 ...

  4. Lutein - Wikipedia

    en.wikipedia.org/wiki/Lutein

    Lutein (/ ˈljuːtiɪn, - tiːn /; [2] from Latin luteus meaning "yellow") is a xanthophyll and one of 600 known naturally occurring carotenoids. Lutein is synthesized only by plants, and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots. In green plants, xanthophylls act to ...

  5. Xanthophyll - Wikipedia

    en.wikipedia.org/wiki/Xanthophyll

    Xanthophyll. The characteristic color of egg yolk results from the presence of a xanthophyll pigment typical in color of lutein or zeaxanthin of the xanthophylls, a division of the carotenoids group. Xanthophylls (originally phylloxanthins) are yellow pigments that occur widely in nature and form one of two major divisions of the carotenoid ...

  6. Carotenoid - Wikipedia

    en.wikipedia.org/wiki/Carotenoid

    In plants, the xanthophyll lutein is the most abundant carotenoid and its role in preventing age-related eye disease is currently under investigation. [5] Lutein and the other carotenoid pigments found in mature leaves are often not obvious because of the masking presence of chlorophyll. When chlorophyll is not present, as in autumn foliage ...

  7. Astaxanthin - Wikipedia

    en.wikipedia.org/wiki/Astaxanthin

    Astaxanthin / æstəˈzænθɪn / is a keto- carotenoid within a group of chemical compounds known as carotenones or terpenes. [3][4][5] Astaxanthin is a metabolite of zeaxanthin and canthaxanthin, containing both hydroxyl and ketone functional groups.

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