When I was BF DS2 I was told to give him a Vit D supp but I never did. This time I was told the same thing (with DS3) but I haven't. Both times my ped didn't make a big deal about it, just mentioned it once briefly. Is it really bad to not give EBF babies a Vit D supp? I figure we'll be starting baby cereal soon (he's 5 months), and is healthy, so no big deal.
ETA: The reason I didn't give the supp is I am afraid of toxicity since Vit D is one of those vitamins that can be easy to overdose in a baby, at least that's what I gather from what I've read.