Lutein May Lower Risk Of Macular Degeneration

Some scientists believe Lutein, an antioxidant, may prevent macular degeneration, which can lead to blindness.Lutein is a yellow plant pigment, part of the carotenoid family that also includes beta-carotene; vegetables rich in lutein include kale, collard greens, spinach and Swiss chard.

Lutein, Macular Pigment and AMD

A recent scientific study shows that supplements of natural lutein esters result in increases of the macular pigment which may play a role in reducing the risk of age-related macular degeneration (AMD), the leading cause of blindness among the elderly.

Researchers from the Netherlands found that lutein ester supplements increased macular pigment density. The macular pigment is important because it may protect the macular region of the eye, the small central part of the retina essential for fine, detailed vision. In addition, lutein and zeaxanthin are capable of scavenging free radicals that can contribute to disease and aging.

Earlier studies have shown an association between AMD and both lutein and zeaxanthin intakes and blood levels. People with AMD exhibited lower macular pigment density. However, in those studies the measurement method that was used depended on technique to produce consistent results. The new study is significant because the techniques used for measuring are more objective and precise.

The Netherlands study is very small and some of its importance lies in the type of techniques used. There are a number of other studies ongoing to investigate and document the role played by lutein and other antioxidants in AMD.

Not everyone supports vitamin supplementation, but the evidence of its importance is mounting. Many nutritional supplements now contain lutein. Doctors who do recommend lutein usually suggest a daily dose of from 6 mg. to 10mg.