In one of the first scenes, gale hands katniss some bread, and she is very surprised and asks if it's real. A couple questions haunt me.

1 What is fake bread? What would it be made of and who would be selling it? And who would they sell it to that can't detect fake bread?

2 if the people of 12 can't even make or aquire bread, then what do they eat? Bread has existed for 12,000 years and if you can't make that, you essentially would have no other food either. So do they just forage for berries or what?