while playing the game through the day you have ot keep logging on and off over and over again because your hunger keeps going down even when you are just standing still. I think it would just be a lot better for server communities if hunger didn't go down while not moving
The easiest solution for your problem: Sleep in a bed. While sleeping in a bed, your hunger does not go down.
So long as you have the "Resting" status, your hunger will not drain AT ALL. Unless all of my friends and my own games are bugged.
In reality though, standing still makes you get hungry though. So, I think keeping it as close to real life as possible doesn't hurt.