The forms of vitamin A you get from carrots and other plants (called carotenoids) aren't toxic, but the form you get from animal products and supplements (called retinols) can be. The US recommended daily intake for an adult male is 900 μg, which is also the recommended daily maximum for 4-8 year old children. This maximum includes a hefty safety margin, so there's no reason to worry if your children eat the same food as you.
Except if you really like liver. Chicken liver contains more than 4000 μg/100g and the liver of other animals contain more. And then you start skirting dangerous levels. Apparently Inuits would avoid eating liver for this specific reason and a few Arctic explorers became ill partly because of this.
Sources: the Wikipedia articles on Vitamin A and Hypervitaminosis A, so reader beware.
Except if you really like liver. Chicken liver contains more than 4000 μg/100g and the liver of other animals contain more. And then you start skirting dangerous levels. Apparently Inuits would avoid eating liver for this specific reason and a few Arctic explorers became ill partly because of this.
Sources: the Wikipedia articles on Vitamin A and Hypervitaminosis A, so reader beware.
https://en.wikipedia.org/wiki/Vitamin_A
https://en.wikipedia.org/wiki/Hypervitaminosis_A