Please quote. I can't recall where that is. And it's probably in the OT, not the NT.
Matthew Henry comments: [1.] As for the sin of stealing, if a man were brought to it by extreme necessity, if he stole meat for the satisfying of his soul when he was hungry, though that will not excuse him from guilt, yet it is such an extenuation of his crime that men do not despise him, do not expose him to ignominy, but pity him. Hunger will break through stone-walls, and blame will be laid upon those that brought him to poverty, or that did not relieve him....
As for fat people needing to eat. I've seen more than fat people in the looting pictures although some are.
In any case, taking bread wrongly because of hunger was a crime committed by King David when he fled from Saul and wrongly took the showbread. Jesus himself affirmed that David did nothing wrong.