An apple a day keeps the doctor away. Eating carrots makes you see in the dark. We’ve all heard people say this stuff but is there any truth to these old-timey sayings?


Take spinach. In 1870, German chemist, Erich von Wolf examined the amount of iron within spinach but when transcribing the data from his findings, he accidentally misplaced a decimal point. Oopsies. So instead of the actual 3.5 milligrams of iron in a 100-gram serving of spinach, he claimed it was a whopping 35 milligrams. Spinach’s nutritional value became legendary (remember Popeye?) and the American consumption of spinach increased by a third.  In 1937 someone rechecked the numbers and found von Wolf’s error, but no one really cared by that point. Spinach had already become a superfood.

So what about carrots? Can they really make you see in the dark? Well, yes, they can certainly help with Nyctalopia (night blindness. It’s an actual thing where some people become staggeringly incapable of seeing in dim light).


The Ancient Egyptians had a cure for night blindness. Just squeeze the juices of a grilled lamb's liver into the eyes of the afflicted person. Ahh those were the days of medicine. The more weird and gross the better! Turns out it worked though because the night-blinded person also ate the liver, which contains a lot of vitamin A. We need vitamin A to make rhodopsin, a photosensitive pigment in the retinal rods that helps you see in dim light. Tadah!

Carrots, you see (pun intended), contain Beta-carotene which our bodies use to synthesise vitamin A. So, eating carrots (and liver for that matter) will improve your night vision to normal levels... But it won’t give you superpowers. 

One guy sounded like a superhero for a while, referring to himself as Carrot Man. He ate more than 3 kg of carrots every week but started turning orange and was admitted to hospital with severe constipation. He was all good after a month of eating less carrots. There can be too much of a good thing.

World War II pilots also ate a bunch of carrots. Back then, people were well aware that vitamin A was critical for healthy eyesight. So in 1940, versions of high-carotene strains of carrots were being tested on pilots to reduce night blindness. This was pretty important at the time because during the 1940 Blitzkrieg, the Luftwaffe often struck under the cover of darkness. The British government issued citywide blackouts to make it more difficult for German planes to hit targets, so maximising vision among pilots and civilians was critical. 


The year before, the RAF had built the new secret Airborne Interception Radar (aka AI). Instead of being limited to land-bound detection stations, the AI Radar was on planes, able to pinpoint enemy bombers before they even reached the English Channel. 

In 1940, RAF night fighter, John Cunningham, became the first pilot to shoot down an enemy plane using AI. He eventually tallied 20 kills - 19 of them at night - and became known as “cat eye” Cunningham. But, the Poms needed to make sure the Germans didn’t know about the secret of their success. So, the UK Ministry of Food came up with a different reason: Carrots. 

Make the Germans think that carrots gave Cunningham night vision.. And just don’t mention the little Airborne Interception Radar that he had on his plane.


Lord Woolton, the Minister of Food, emphasised the call for self-sustainability in the garden, and in 1941 launched the Dig For Victory Campaign. Families were encouraged to start their own “Victory Gardens,” to grow their own vegetables, particularly carrots. They even invented Dr. Carrot, “the children’s best friend,” who was blasted on the radio and on posters everywhere. A Disney cartoonist actually designed a whole family based on Dr. Carrot. It was a carrot craze.

A lot of people suggest that the carrot propaganda was a deliberate subterfuge to fool the Germans and cover up for the AI Radar. According to John Stolarczyk, curator of the World Carrot Museum (yes there is a World Carrot Museum), the Germans were already incorporating carrots into their diet and there wasn’t any evidence they fell for it. So it’s a maybe.

If the campaign WAS deliberate, it was a bloody good stunt. And if the point was genuinely to encourage good nutrition and lighten the load on shipping to aid the war efforts, well that was only ever going to be a good thing.

Side note, Stolarczyk reckons the Ministry of Food encouraged so much extra production of carrots that by 1942, they had a 100,000-ton surplus of carrots. Now that’s a lot of carrot cake. 

 
 
 
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