Kosher marshmallows

I always feel sorry for the kosher marshmallows in the supermarket. There must be something in the regular kind that you can't eat if you keep a kosher kitchen, and whatever it is must be whatever keeps them from collapsing in on themselves, because the kosher versions always look deflated and sad, kind of like the three-branched Christmas Tree that Charlie Brown picks out every year. They even have to be packed in a special airtight inflated bag so they don't get entirely smooshed in shipment. I feel sorry for them and want to buy some just so somebody does, but on the other hand - who wants deflated marshmallows?

Okay, even I don't know what that has to do with anything. ^_^