To Feed, or Not to Feed?

I've been following an interesting discussion on an ALSC list-serv about serving snacks in programs.  Nearly everyone writing in is advocating avoiding food at programs for young children.  Somewhere between one in twelve and one in sixteen kids have a serious food allergy, and this number seems to be on the rise, according to the CDC.  This becomes a safety concern, and also an issue about inclusion.  If parents have to prepare for a fight with their left-out children at every storytime where snacks are served or you do a food-related craft, how likely are they to return?

Tricky stuff, since it is fun to include food in programs, and we have heard for years that a great way to make teens feel welcome at library programs is to feed them!  How do you approach this issue?