Forgot to say mention everyone knows when they have ate something they shouldn't have. desert after a meal is guilty pleasure and it's just throwing a speed pump in your work.
Before you eat your snack or big breakfast just ask yourself if you really need that, are you really hungry? are you going to sit around after that big breakfast or go burn it off? eat lighter on off days and eat more on active days. human bodies don't need a lot of fuel to sit around in the A/C and watch tv or run errands.
I rode 23 miles this morning and burned 977 calories. So my breakfast was larger than normal. If i had ate my usual small breakfast my stomach would still be starving and i'd be tired and weak by noon because I know my body. Monday is my off day cause Ive been riding hard the last 4 days. My body is going to recover while I feed it and im still going to lose 1 pound by next Sunday.