How abundant micrograms of vitamin A per afternoon is needed for toxicity?

Curious to know how much is too much.
Answers:
Generally 25,000 IU/kg of body weight

1 IU of Vitamin A is equivalent to 0.3 μg retinol or 0.6 μg beta-carotene

So if you wiegh 100 kg you would need 1500 mg of Beta-carotene to Overdose. In comparion on average one carrot contains about 16 mg so you would have need of to eat about 1000 of them to lead to toxicity. Source(s): Wikipedia: http://en.wikipedia.org/wiki/Vitamin_A#Sources_of_vitamin_A

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