The risk of glaucoma, the second leading cause of blindness, appears to be dramatically reduced by kale or collard greens consumption, thanks to the phytonutrient pigments lutein and zeaxanthin.
Images thanks to National Eye Institute.
Glaucoma is a deterioration of your optic nerve, the nerve that connects your eyes to your brain, and is second only to cataracts as the world’s leading cause of blindness. The weird thing is that we still don’t know what causes it, and so there’s a desperate search for environmental or dietary influences.
The most protective dietary component, decreasing the odds of glaucoma by 69%: consuming at least one serving a month of collard greens or kale. Just once a month or more. And the silver and bronze metal goes to weekly carrot and then peach consumption.
We think may be the lutein and zeaxanthin, two yellow plant pigments that seem to know right where to go, the hone right into our retinas and appear to protect against degenerative eye disease.
They allow you to us see farther too. They’re peak light absorbance just so happens to be just the wavelength of color of our planet’s sky, and so by filtering out that blue haze, on a clear day standing on top of a mountain individuals with high macular pigment—lutein and zeaxanthin— would be able to distinguish distant mountain ridges up to 27 miles further than individuals with little or no pigment.
To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring watch the above video. This is just an approximation of the audio contributed by veganmontreal.
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I covered two other leading causes of blindness, age-related macular degeneration and diabetic retinopathy, in yesterday's video. Tomorrow I'll close this three-part series on preventing vision loss by addressing the world's leading cause of blindness, cataracts. For more on lutein and zeaxanthin and where to get them in the diet, see my video Egg Industry Blind Spot. And there are also hundreds of other videos on more than a thousand subjects—please feel free to explore them.