Yes, the old adage is true -- sort of.
The compounds that truly help eyesight are the three macular pigments: lutein, zeaxanthin and meso-zeaxanthin. And yes, they are found in carrots. But there's a catch, according the the BBC's Michael Mosley, host of the popular show "Trust Me, I'm a Doctor."
These particular compounds are found mainly in the green parts of plants above the ground.
"So," Mosely writes, "if you want to improve your eyesight, I'm afraid it's munching on leafy greens (taken with some fats to help absorb these fat-soluble chemicals) that will do the best job."
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