Vitamin A testing
Key risk factors
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Taking mega-doses in supplement form (many times the RDA/upper limit).
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Multiple supplements stacking preformed vitamin A plus foods high in retinol.
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Existing liver disease, or taking other hepatotoxic drugs.
How to protect yourself
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Prefer getting vitamin A from a balanced diet rather than high-dose pills unless prescribed.
Liver health supplements -
If you take vitamin A supplements, check the form (retinol vs beta-carotene) and dose.
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Monitor liver enzymes if high doses are used.
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Avoid “stacking” many supplements that each have vitamin A.
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