Over the years, here at 3FC, I've been part of a couple conversations about actual grumbling stomach hunger. It seems that somehow er other ... some of us don't get it.
In my case ... Since eliminating a few food items (potatoes and grains) I do. Before that? I don't remember the last time I was grumbling tummy hungry. Oh I could always eat and often had a 'taste' for something but no grumblings.
Eat good food. Move yourself. Lift something.