Adding lutein and zeaxanthin
to the cell cultures provided double the protection from UVB damage compared with vitamin E.
She has also studied and will soon report the effects of lutein and zeaxanthin
supplementation on carotenoid levels in the blood, adipose (fat) tissue, and macula of monkeys.
In research studies where eyes were examined post-mortem from people who had AMD, it was found that these individuals' eyes had significantly less lutein and zeaxanthin
than those without AMD.
These macular carotenoids consist of lutein and zeaxanthin
, and meso-zeaxanthin
We tested to see whether adding lutein and zeaxanthin
and/or omega-3 fatty acids to the AREDS formulation would further reduce the risk of advanced AMD.
This five-year study launched in 2006 sought to determine the combined effects of lutein and zeaxanthin
supplementation on retinal function in patients with early AMD compared to beta-carotene or omega-3's.
PreserVision Eye Vitamin AREDS 2 Formula builds on the original PreserVision Eye Vitamin Age-Related Eye Disease Study (AREDS) formula by adding omega-3 fatty acids (1,000 mg) per dally dosage, lutein (10 mg) and zeaxanthin
(2 mg), replacing beta-carotene.
There have been many epidemiological studies on the association between lutein and zeaxanthin
(L and Z) and ARMD.
Lutein and zeaxanthin
are the only carotenoids detected in the human lens and the oxidation properties of lutein and zeaxanthan further support a role for these nutrients in preserving lens clarity, they said.
These include lycopene, the colour of red tomatoes, zeaxanthin
, the colour of yellow corn, and beta-carotene, the colour of orange carrots.
A There is a growing body of evidence that shows that including lutein and zeaxanthin
in your diet may reduce the risk of age-related macular degeneration (AMD).
Higher dietary intake of the carotenoids lutein and zeaxanthin
is associated with reduced likelihood of developing neovascular age-related macular degeneration (AMD), geographic atrophy, and large or extensive intermediate drusen, according tuJohn Paul SanGiovanni, Sc.