For what it is worth, we had no allergies in our families - both sides etc. So far the nieces and nephews (more than one familiy) are allergic to:
nuts
eggs
fish
some fruit
Of course, there is a lot of thought out there as to what causes food allergies so we could debate this forever. Just wanted to mention, though, that it doesn't matter if there is a history or not.
I am not going to worry, myself, about my little ones and allergies, but please understand that allergies can start even without a history.