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Vitamin A
Essential for vision, immune function, and skin health.
Summary
Recommended daily intake: 900 mcg. Upper limit: 3000 mcg. Natural sources include Liver, Sweet potato, Carrots.
How much Vitamin A should you take daily?
Recommended Daily Allowance
900 mcg
Upper Limit
3000 mcg
Evidence Level 4
Which foods contain it?
LiverSweet potatoCarrots
FAQ
What is Vitamin A commonly used for?
Vitamin A is commonly discussed in relation to Vision health, Immune function, Cell growth.
How much Vitamin A should adults take per day?
The current reference on this page lists an adult daily intake of 900 mcg, with an upper limit of 3000 mcg.
What side effects or precautions matter for Vitamin A?
Preformed vitamin A (retinol) can be toxic in excess. Beta-carotene is safer. If you have medical conditions or take prescription drugs, check with a clinician first.
Which foods naturally contain Vitamin A?
Common food sources include Liver, Sweet potato, Carrots. Food sources can be a useful baseline before deciding on long-term supplementation.
Does Vitamin A have an upper intake limit?
Vitamin A does have a listed upper limit on this page: 3000 mcg. Staying far above that range over time may increase the chance of adverse effects.
Data Sources
NIH ODSTFDA DRIHealth CanadaDrugBankEFSA
Information on this page is sourced from the above official institutions and cross-verified.
This page is for nutritional science information only, not product promotion or medical advice. Consult a healthcare professional for health concerns.