You are not intended to come back from excess hunger. When I do implement a fix the plan is to trigger the endgame at more points so there's less confusion on the issue.
Actually, now that I think about it, it kind of sucks to lose the game that far in. I think I'll change my plan so that you can recover from starvation by eating in town before returning the Halfway. But, like, no promises about how long it will actually take me to get that sorted.