Which two specific carotenoids are mentioned as concentrating in the eye's retina and lens to provide direct protection against oxidative stress contributing to age-related macular degeneration?
Answer
Lutein and zeaxanthin
For optimal vision health, the carotenoids lutein and zeaxanthin are specifically noted for their concentration within the retina and lens of the eye. Their presence there offers a direct defense mechanism against oxidative stress, a contributing factor to the development of age-related macular degeneration. These compounds work synergistically with Vitamin A and Vitamin E to maintain eye integrity. Quercetin and catechins are examples of flavonoids involved in general antioxidant activity throughout the body, while malic and citric acids are primarily organic acids contributing to flavor.
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