The skin of gingerbread people is purely made out of gingerbread, therefore it is edible to most species and is often irresistable, this is terrible for most gingerbread who find themselves around people not made of candy. 

Essence of Magic: Gingerbread men are composed of magic in their very bodies, this results in them not needing any form of sustenance to continue on.

Sweetskin: Gingerbread men are irresistable to many mortals, this gives them a +3 to all charisma checks, however puts them at risk of attack for food.