Lutein
Lutein
Lutein (/luːˈtiːn/; 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.
Etymology
The term Lutein comes from the Latin luteus, meaning "yellow". This is a reference to the color of the compound, which is a yellow pigment found in many plants.
Function
Lutein is a type of Carotenoid that is absorbed from foods in the human body and transported to the retina. It is thought to function as a light filter, protecting the eye tissues from sunlight damage.
Related Terms
- Carotenoid: Organic pigments that are found in the chloroplasts and chromoplasts of plants and some other photosynthetic organisms.
- Xanthophyll: A class of oxygen-containing carotenoid pigments, important in the vitamin A synthesis.
- Retina: A thin layer of tissue that lines the back of the eye on the inside. It is located near the optic nerve.
Health Benefits
Lutein is believed to have several health benefits. It is known to improve or even prevent age-related macular disease which is the leading cause of blindness and vision impairment.
Sources
Lutein is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots. Other sources include egg yolks and animal fats.
See Also
External links
- Medical encyclopedia article on Lutein
- Wikipedia's article - Lutein
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