Fat-soluble vitamins
Vitamin A
Vision · immunity
Retinal function, immune response, skin and mucous membrane health.
Upper-limit caution
The Tolerable Upper Intake Level for Vitamin A is 3000 mcg per day. Routine intakes above this level — counting food + supplements — raise the risk of adverse effects. Multivitamins, fortified foods, and standalone supplements stack faster than people expect.
How Vitamin A appears on labels
Supplement labels list Vitamin A under several names depending on the chemical form used. Any of these on an ingredients panel counts toward your Vitamin A intake:
- vitamin a
- retinol
- retinyl palmitate
- retinyl acetate
- beta-carotene
- beta carotene
Deep dive
For mechanism of action, dosing protocols, evidence grade, and interaction warnings on Vitamin A, see the full encyclopedia entry:
Beta-Carotene encyclopedia entry →Related fat-soluble vitamins
Track your full intake
Formulate's free desktop app aggregates Vitamin A (and ~40 other nutrients) across every supplement in your stack — flagging underdoses, overlaps, and upper-limit overshoots in one view.
Get the appMedical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Targets and upper limits are general adult reference values; individual needs vary by age, sex, pregnancy status, and clinical context.