Zeaxanthin
Zeaxanthin
Zeaxanthin (/ziːəˈzænθɪn/; from Greek ζεία, meaning "yellow") is a carotenoid alcohol that gives certain plants and microorganisms their characteristic color. It is one of the most common carotenoid alcohols found in nature and is important in the xanthophyll cycle.
Etymology
The term Zeaxanthin is derived from the Greek word 'ζεία' (zeía), which means 'yellow'. This is in reference to the yellow pigmentation that Zeaxanthin imparts to the plants and microorganisms in which it is found.
Function
Zeaxanthin is one of the two primary xanthophyll carotenoids contained within the retina of the eye. Along with Lutein, it is thought to function as a light filter, protecting the eye tissues from sunlight damage.
Sources
Zeaxanthin is synthesized by plants and some microorganisms. It is present in high quantities in green leafy vegetables such as spinach, kale, and broccoli. It is also found in yellow and orange fruits and vegetables, such as oranges, papayas, and corn.
Health Benefits
Zeaxanthin, along with Lutein, is known to promote eye health and prevent age-related macular degeneration (AMD). It is also thought to play a role in enhancing cognitive function.
Related Terms
External links
- Medical encyclopedia article on Zeaxanthin
- Wikipedia's article - Zeaxanthin
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