From SaintWacko on MCF:

Is there any way to prevent starving from completely killing me? I'd like it to stop at half a heart, as it does on normal in vanilla minecraft. Sometimes my girlfriend brings the world up and opens it to LAN while I'm at work, and it's very annoying to come home and find that I've starved to death. I realize I could either remove the passive hunger drain, or remove the damage from starving, but neither of those are quite what I'm looking for.