No OD from carrots
It is impossible to get Vit A toxicity from too many carrots because carrots have NO Vit A, only beta carotene
that our bodies convert to A as needed.
Too many carrots can make one's skin turn yellow-orange. This is commonly thought to be due to deposits of carotenoids in the skin but for a different perspective see http://bit.ly/U3TFoZ
For more on the benefits of carrots see http://bit.ly/1jI5iGF