Vitamin A supplements improve vision in healthy individuals
8.0Strong
evidence
evidence
The Claim
There is a common belief that taking vitamin A supplements can enhance vision even in people without deficiencies.
Origin
This misconception likely arises from vitamin A's well-known role in maintaining healthy vision and preventing night blindness.
What Science Says
Research indicates that while vitamin A is essential for maintaining normal vision, supplementation does not improve vision in individuals who already have adequate levels. Randomized controlled trials show no improvement in vision in healthy individuals taking vitamin A supplements.
Verdict
False