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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. 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 ...

4. meso-Zeaxanthin - Wikipedia

   en.wikipedia.org/wiki/Meso-Zeaxanthin

   Meso-Zeaxanthin ( 3R,3′S-Zeaxanthin) is a xanthophyll carotenoid, and is one of the three stereoisomers of zeaxanthin. The meso form is the second most abundant in nature, after 3R,3′R-zeaxanthin, which is produced by plants and algae. [1] meso -Zeaxanthin has been identified in specific tissues of marine organisms [2] and in the macula ...

5. Zeaxanthin - Wikipedia

   en.wikipedia.org/wiki/Zeaxanthin

   Zeaxanthin is one of the most common carotenoids in nature, and is used in the xanthophyll cycle. Synthesized in plants and some micro-organisms, it is the pigment that gives paprika (made from bell peppers), corn, saffron, goji ( wolfberries ), and many other plants and microbes their characteristic color. [1] [2]

6. 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 ...

7. Carotenoid - Wikipedia

   en.wikipedia.org/wiki/Carotenoid

   Carotenoid. Chemical structure of β- carotene, a common natural pigment. Carotenoids ( / kəˈrɒtɪnɔɪd /) are yellow, orange, and red organic pigments that are produced by plants and algae, as well as several bacteria, archaea, and fungi. [ 1] Carotenoids give the characteristic color to pumpkins, carrots, parsnips, corn, tomatoes ...