I see a lot of vitamins or supplements for diabetic adults, but does anyone know of any vitamins/supplements for diabetic children? Right now I'm just sticking with Centrum for kids.

Careful with those vitamins! Too much of a good thing does happen. CalciumĀ  and vitamin D are the only vitamins I touch because of all the additives they fortify food with nowadays- we can overdose. But if you are concerned talk with your pediatrician.