“Vitamin A (as Acetate and 11% Beta Carotene)?”Here!Vitamin A
Appears in 1 scanned product.
As a supplement
Talk to your doctor or pharmacist.
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A blended vitamin A source combining retinyl acetate, a synthetic preformed vitamin A compound, with a smaller portion (about 11 percent) supplied as beta-carotene, a plant-derived pigment the body can convert into vitamin A as needed.
Why it’s used
Taken to meet vitamin A requirements, which support vision, immune function, and cell growth.
What the evidence is for
preventing and correcting vitamin A deficiency.
What the evidence says
NIH ODS confirms vitamin A is essential and that deficiency, though rare in well-nourished populations, can affect vision and immune function. The preformed (retinyl acetate) portion is absorbed directly and contributes to intake more predictably than beta-carotene, whose conversion efficiency varies between people. Evidence for benefits beyond correcting or preventing deficiency, in people who are not deficient, is limited.
Dose studied
900–3000 mcg — adult RDA (mcg RAE) up to the tolerable upper intake level, per NIH ODS.
Context
NIH ODS expresses requirements and upper limits in micrograms of Retinol Activity Equivalents (mcg RAE), a unit that accounts for the different conversion rates of preformed vitamin A and beta-carotene; high-dose beta-carotene supplementation has also been studied specifically in smokers, where large trials found an increased lung cancer signal rather than a benefit.
Rumors
Taking a vitamin A supplement helps people with age-related macular degeneration.
Supports — suggestivehealth and safety evidence
Studied in: people with early or intermediate age-related macular degeneration.
Measured as an outcome.
- Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration (Peer-reviewed) · Funding not checked
Who’s saying this
- WebMD — a publisher: health information publisher; an Internet Brands company
How we know who this is
- “As a leader in digital health publishing for more than 25 years, WebMD strives to maintain the most comprehensive and reliable source of health and medical information on the internet.” (their page)
- “© 2005 - 2026 WebMD LLC, an Internet Brands company.” (their page)