Carrots are good for your eyesight
This is actually British military propaganda from WWII. Carrots are indeed rich in vitamin A, any deficiency of which can cause blindness, but that does not make the vegetables especially good for the peepers. Rather, early in WWII, the RAF had started using radar to detect German night bombers over the English channel, and to disguise the fact, told the papers that their star ace, “Cat’s Eyes” John Cunningham, owed his prowess to a lifelong love of carrots. No, it was the brand new onboard radar.