According to MDSupport.org, lutein and zeaxanthin are substances found in dietary sources that can help promote strong vision. They also help to reduce the risk of eye diseases such as glaucoma, age-related macular degeneration and vision loss. Lutein and zeaxanthin can be added to the diet by adding natural food sources or by taking a daily supplement.
Age-related Macular Degeneration
According to MD Support, about 17 million adults in America suffer from symptoms of age-related macular degeneration. The National Eye Institute explains that macular degeneration occurs when the macula deteriorates. The macular is the part of the eye that permits vision in the central area of the eye and allows perception of finer details. Age-related macular degeneration can eventually lead to complete loss of vision.
Age-related Macular Degeneration and Zeaxanthin
According to MD support, studies conducted by Harvard Medical School have shown one of zeaxanthin's functions is to protect the retina from damage caused by light. The concentration of zeaxanthin in the retina helps to protect the retina by absorbing blue light and destroying free radicals that lead to macular break-down.
Age-related Macular Degeneration and Lutein
According to the Leutein Information Bureau, lutein, like zeaxanthin is found in high concentrations in the macula and is responsible for macular pigmentation (the yellow color found in the retina). This helps to protect the retina from damaging light rays and prevent macular degeneration.
Natural Sources of Lutein and Zeaxanthin
According to the USDA National Nutrient Database, natural sources of lutein and zeaxanthin include kale, egg yolks, spinach, collard greens, corn, carrots, green beans, broccoli, Romain lettuce and green peas.
Lutein and Zeaxanthin Supplementation
MS Support recommends a daily intake of 20 milligrams of lutein and 6 milligrams to 10 milligrams of zeaxanthin per day. These two supplements can be obtained separately or in a combination. Vitamin C supplements can help to improve the absorption of lutein and zeaxanthin.
References
- MD Support: Lutein And Zeaxanthin May Offer Protection Against MD
- Lutein Information Bureau: Lutein and Age related Macular Degeneration (AMD)
- MD Support: Study Demonstrates Essential Role of
- National Eye Institute: Facts About Age Related Macular Degeneration
- All About Vision: Lutein and Zeaxanthin:
