The Weekly Cheat
A little balance in life is important. So while eating healthy most of the time is essential for flat abs, it's OK to enjoy a weekly cheat.
The rules of the cheat day are simple: control your calories but loosen up on the content of your diet. So you've been craving pizza all week long? Enjoy a slice on your cheat day.
Notice I said a slice and not the whole pizza. Indulge with control!