Lutein is a yellow pigment that belongs to a group of substances
called carotenoids. Carotenoids are believed to play an
important role in preventing or slowing the appearance of
macular degeneration, one of the leading causes of blindness
among people over 60 years of age. Lutein was first isolated
from egg yolk and is one of the pigments in the petals of yellow
flowers and bird feathers. Lutein and another closely associated
carotenoid called zeaxanthin are the most commonly occurring
carotenoids in nature. Medically valid uses There are currently
no specific indications for lutein or zeaxanthin. However, there
is mounting evidence that lutein, zeaxanthin, and other
carotenoids such as Lutein and zeaxanthin work by protecting the
retina of the eye from the effects of aging and ultraviolet
light exposure. They function as These carotenoids may protect
an individual from developing macular degeneration, but may not
necessarily treat the condition once it occurs. Therefore, the
diet must contain adequate amoun