Lutein is an antioxidant, which belongs to the carotenoid family. Lutein is a yellow coloured pigment.

Distribution: Lutein is found in egg yolk and many plants and vegetables, including
red peppers, mustard, spinach, leek, collard greens and kale. Lutein is responsible
for the colouring of many fruits and vegetables.
Action of Lutein: Lutein can lower the risk of age related vision loss, which causes
gradual loss of central vision. Age related vision loss or age related macular
degeneration (AMD) is caused by steady damage of the retina. Lutein probably
acts by preventing oxidative damage of the retina cells. Lutein is concentrated
in the central part of the retina, called the macula. In the macula are yellow pigments
(macular pigments, composed of zeaxanthin and lutein) which protect the
retina from damage of the photo-oxidative affect of blue light.
Lutein can also reduce the risk for artery diseases. Studies have shown that persons
with the highest lutein intake showed the lowest artery wall thickening. Lutein
also reduces the oxidation of LDL cholesterol thereby reducing the risk of artery
clogging.
Lutein can also reduce the risk of skin cancer and sunburn. Under influence of sunlight,
free radicals are formed inside the skin. These free radicals can damage
the DNA of cells. Lutein can protect against the damaging effects of UV-B radiation.

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