Vitamin A (Retinol)
Solid evidence for vision. Not a miracle worker, but genuinely useful for the right person.
Verdict
7/10 Solid
Evidence
Grade B / 100+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
Essential for vision. Night blindness preventer.
DOES IT WORK?
7/10 Solid. Good pick. Essential vitamin for vision, especially night vision. Deficiency causes blindness. Excess is toxic. Most get enough from diet.
HOW MUCH TO TAKE
See product label
COST
Budget-friendly. $20-35/month for quality brands.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Give it 4-8 weeks for full effects. Patience pays.
SAFETY
Safe for most people. No red flags at normal doses.
HOW IT FEELS
Essential for night vision. Deficiency is serious.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
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