my 2 yo takes a natures way kids smart vita gummie everyday. it is like a lolly but is omega 3 and fish oil. we also have kids' vitamin c here available for them when they want it.
I started DD2 on these a couple of weeks back, she loves them. They have a few different ones - ATM we have the Vit C & zinc but when these are finished I might switch it for a more general multi-vitamin. I justhave to watch how many she has - they are just like lollies and she would eat them all if she could.