Comment by ChiMan

Except that three saturated-fat-laden strips of bacon for breakfast prevents the need for lunch, leaving my daily caloric intake lower than if I had eaten a bagel for breakfast and been hungry at lunch. The longer period between meals--snack-free--afforded by the bacon also means that post-meal insulin (the energy-storing hormone) has a chance to drop off, leaving glucagon (the energy-burning hormone) a path for liberating stored energy to power physical and mental activity.