I don't know, Water.
My doctor at the weight loss clinic told me that 40% + of binges occur because we're hungry.
I guess it all depends on how "together" you are in organizing your meals. When I'm hungry and I DON'T have a meal prepared/planned, it's then that I'll start grabbing any and every food.
Now that I'm dedicated to eating three meals and three snacks a day, I never feel that terrible pang of hunger. And that's what works for me.
I didn't have a good breakfast yesterday, and I missed my mid-morning snack. By mid-afternoon I was "starving", and I started binging.
So today I'll make sure I'm fully fueled.