There's an urban legend about carrots helping one to see in the dark. This is actually traceable back to a misinformation campaign by the British air ministry during World War II. The Air ministry tried to prevent the Germans from accessing information about the Radar, and so spread word that their excellent night pilots were pumped full of Carrots. The radar was actually the cause. While there are theoretically some benefits from extremely high doses of beta-carotene in preventing ocular degeneration, and those suffering from nyctalopia, a Vitamin A deficiency, can find some relief in the consumption of carrots, this does not apply to the average person. Interestingly, extremely high doses of beta-carotene can turn your skin orange (this doesn't seem harmful, and eventually goes away without changing your diet). Over consumption of carrots can also cause your veins to shed the plaque which has built up over the years. These plaque chunks can become lodged in a variety of places possibly resulting in blindness or stroke. Neither of which would help your quest for night vision.