Science Monday: Do Carrots Really Improve Your Eyesight?

Sam Westreich, PhD
Sharing Science
Published in
6 min readMar 23, 2020

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Oh, and can they turn you orange? Carrot consumption, World War II, and how soldiers got so good at spotting enemy planes in the darkness

Pictured: better for improving eyesight than corrective lenses. Photo by Irina Blok.

Overall, carrots are pretty good to eat. They’ve got a nice crunch, they come in bright colors, they store well, and they contain plenty of vitamins, most particularly vitamin A.

Of course, this usually isn’t enough to convince a recalcitrant child to eat them at dinner. I remember, when I was a child, refusing to even touch those orange, crunchy, flavorless sticks unless I got a nice dollop of ranch dressing to dip them in.

My parents did their best to convince me that I had reason to consume my vegetables. “You should eat carrots!” they’d say to me. “They help improve your eyesight!”

This did work well on me as a child, I have to admit; I found out around age six that I needed glasses and was significantly short-sighted. Maybe, I figured, if I ate enough carrots, I’d improve my vision and no longer feel blind as a bat whenever I removed my glasses.

I still wear glasses (well, contact lenses these days). But did the carrots actually help me out at all? Do they have any effect on eyesight?

Short answer: no.

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Sam Westreich, PhD
Sharing Science

PhD in genetics, bioinformatician, scientist at a Silicon Valley startup. Microbiome is the secret of biology that we’ve overlooked.