2 verifications about carrots carrots ×
“Eating carrots significantly improves night vision in humans.”
This claim is misleading. Carrots contain beta-carotene, which the body converts to vitamin A — essential for rod cell function in the eye. However, eating carrots only restores night vision in people who are vitamin A deficient; it does not enhance night vision beyond normal levels in well-nourished individuals. The strongest clinical trial cited used carotenoid supplements, not carrots. The popular belief largely traces back to WWII British propaganda designed to conceal radar technology. For most people in developed countries, extra carrots will not meaningfully improve night vision.
“Carrots were originally purple before being selectively bred to be orange by the Dutch.”
This popular claim contains grains of truth but distorts the full picture. Wild carrots were originally white or pale yellow — purple only appeared after domestication around 5,000 years ago, alongside yellow varieties. Orange carrots emerged in 15th–16th century Western Europe likely from white/yellow crosses, not from purple stock. Dutch growers did play an important role in refining and popularizing orange varieties, but calling them the sole creators overstates the evidence. The claim collapses a complex history into an oversimplified narrative.