Do carrots help you see in the dark?
To put it simply, yes and no.
What is retinol?
Retinol is what your body needs to synthesize Rhodopsin.
This is the pigment in your eyes that works in low-light situations and thus allows you to see better in the dark.
If you have Vitamin A or Retinol deficiency, then eating plenty of carrots will be a great way to deal with this problem, but only at the level of a normal, healthy person.
Likewise, eating carrots for the average healthy person will only multiply night vision.
Won't be worth eating carrots like your Bugs Bunny.
Where exactly did this "truth" come from?
Is a rumor going to make kids eat their vegetables?
Oh no.
In the early stages of World War II, the Battle of Britain was taking place over the UK and the German Air Force was bombing earthly hell out of British cities.
Every night covered in darkness is the sound of bomber engines as they cross the canal, determined to bombard the British.
However, a new invention (ish) called the Radar enabled the British to detect the incoming German air force and to control their RAF fighters in time for effective interception.
Not wanting the Germans to notice this, the Air Force issued a lot of press releases announcing their pilots had eaten plenty of carrots to give them exceptional night vision.
It was so successful that it not only deceived the German High Command, but also deceived the British people and that is where the story of ex-wives comes from.