Energy bar should just be removed. It conflicts too much with the hunger bar and other FEP mechanics and is never purposeful. All it's good for is suicide.
It's not like anyone is ever going to actually starve from lack of food. Trees and bushes are everywhere.
All it does is make alts required to do levelling/mass tree-chopping and the occasional "fuck u" if you forget/fail to log off or aren't paying attention.