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Please tell me how long it takes for the body to flush excess vitamin a?

1 doctor weighed in
Dr. Bruce Saran
Ophthalmology

In brief: Depends

Acute toxicity occurs when adults take more than 20-100 times the rda ( recommended daily amount) of vitamin a over a period of hours or a few days.
This clears in days. This is less of a problem than is chronic toxicity from preformed vitamin a. Chronic toxicity results from the taking high amounts of preformed vitamin a for months or years of > 25, 000 iu can lead to permanent health problems.

In brief: Depends

Acute toxicity occurs when adults take more than 20-100 times the rda ( recommended daily amount) of vitamin a over a period of hours or a few days.
This clears in days. This is less of a problem than is chronic toxicity from preformed vitamin a. Chronic toxicity results from the taking high amounts of preformed vitamin a for months or years of > 25, 000 iu can lead to permanent health problems.
Dr. Bruce Saran
Dr. Bruce Saran
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