Lewd Food

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Debunked: Eating carrots may improve night vision, because of large amounts of Vitamin A.

Carrots are high in vitamin A; vitamin A deficiency leads to night blindness. But once vitamin A doses are adequate, increasing the levels doesn't improve night vision; in fact, one study found an inverse correlation (eating more carrots was associated with worse night vision), perhaps because people were trying to self-medicate their perceived night blindness. Reference: Aust N Z J Ophthalmol 1999 Jun-Aug;27(3-4):200-3. Carrots, carotene and seeing in the dark. Smith W, Mitchell P, Lazarus R.