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Compound Deep-Dive
Tier 3: Research ChemEssential for health but best obtained through diet; supplement only if deficient or under medical guidance.
Vitamin A
RetinolRetinyl palmitateBeta-caroteneProvitamin A
Essential but easy to overdo
Hype Risk
3/10
Noticeability
4/10
Evidence Tier
Strong
Cost / Month
~$3
Toxicity risk
What it's actually good for
Energy: neutralFocus: neutralSleep: neutralMuscle: neutralRecovery: neutralMood: neutral
How it works
Vitamin A is an essential fat-soluble nutrient critical for vision, immune function, and cellular communication. While deficiency is rare in developed nations, it remains a primary cause of preventable blindness globally.
It acts as a precursor to retinal for light detection in the retina and retinoic acid for regulating gene expression in immune and epithelial cells.
Safety
- Chronic high intake of preformed retinol can lead to liver damage and bone mineral density loss.
- Excessive intake during pregnancy is teratogenic and can cause birth defects.
- Beta-carotene supplementation is associated with increased lung cancer risk in smokers.
The full StackRoast report adds
- The exact dose, timing, and effective range to actually run it at
- Where people go wrong with it — the dose-creep and timing traps
- What Vitamin A clashes with or duplicates in your stack
- Which brands are actually worth buying
Community Reality Check
Distilled from 450 threads
Community Reality Check
Distilled from 450 threadsConfidence: high
What users report
- Clearer skin
- Improved night vision
The catch
- Toxicity concerns
- Headaches
- Dryness
Side effects reported
- Dry skin
- Joint pain
- Nausea
https://www.reddit.com/r/Supplementshttps://www.reddit.com/r/SkincareAddiction
The Receipts
8 sources— studies, videos & links
The Receipts
8 sources— studies, videos & linksVideos
Papers
Creators
Clinical Sources
Taking Vitamin A in a stack? Find out if the combination actually makes sense.
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