You have fasted overnight and your system has had a chance to quiet down; you blood chemistry - blood sugars, triglycerides, LDL cholesterol and inflammatory levels - are likely at their most controlled levels. At this point, you can break-the-fast in a way the starts the controlled burn needed to energize you through the day; or, you can set your system ablaze, triggering the cascade of reactions that make controlling your appetitite through the day difficult while doing your arteries harm