This article is from the Solid Food for Infants FAQ, by David M. Poduska poduska@cis.ohio-state.edu with numerous contributions by others.
Babies that eat a lot of carrots, sweet potatoes, etc., may turn a
little orange in the nose. There is no need to be concerned about
this. As long as they are only eating these foods (as opposed to
drinking lots of carrot juice, say), there is no hazard, no matter how
much they eat. It is impossible to get vitamin A toxicity from
over-eating orange vegetables because the enzyme that converts beta
carotene into vitamin A quits working when the body has gotten enough
vitamin A. If you don't like the yellow nose, you can try to cut back,
of course.
 
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