Pot-Belly Research Paper
Generally speaking pot-belly pigs, will pretty much eat anything you give them, sadly pot-belly pigs are known to become very over-weight, in most cases obese, which can lead to many problems later on with the pigs life, a example of a problem which has happened to many pigs before, is problems with their joints and their feet. You might already know, but potbelly pigs are very smart, it's been known for many pigs to open the fridge themselves and start going though all of your food, trying to treats to eat, this can be a problem for many pigs, mainly if they start to become over-weight.
By feeding pot belly pigs the correct diet, with the right food can very easily prevent these problems, it may not stop your pig from opening your fridge,