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Carrots give you night vision

From bullshitopedia
Carrots give you night vision
MISLEADING
"Eating lots of carrots dramatically improves your ability to see in the dark."
Domain Food, Nutrition & Wellness
Tactic Propaganda Technique
False Context
Era Historical
First seen 1940
Origin British government publicity during World War II about night-fighter pilots
Last reviewed 2026-10-29
Further reading: books on Food, Nutrition & Wellness

The belief that carrots give you night vision was boosted by British wartime publicity. During the Blitz, Royal Air Force night-fighter pilots such as John "Cat's Eyes" Cunningham shot down German bombers using new airborne radar. Stories credited their success to eating carrots, which helped keep the radar secret and encouraged people to eat home-grown vegetables.

The claim

Generations of children have been told carrots will help them see in the dark.

What the evidence shows

  • Vitamin A. Carrots contain beta-carotene, which the body converts to vitamin A. Severe vitamin A deficiency causes night blindness, and correcting it restores vision.
  • No super-vision. For people with adequate vitamin A, extra carrots do not improve night vision.
  • Propaganda. The Ministry of Food promoted carrots with characters like "Doctor Carrot."

Sources

  • Smithsonian Magazine, "A WWII Propaganda Campaign Popularized the Myth That Carrots Help You See in the Dark," August 2013.