Research suggests a critical element overlooked by many diets is not just what you eat while dieting, but when you eat. Dieters who consume the bulk of their calories at breakfast and a pre-3 p.m. lunch tend to lose more weight and have healthier blood lab findings than dieters who ate their calories at night, even when both ate the exact same foods. The reason for this phenomenon appears to be tied to circadian rhythms. The body is apparently primed to process calories more efficiently when preparing for the days activity and while actively participating in the day, than it is when the body is prepping for rest. In short, you should eat to prepare for the challenges ahead, instead of eating to recover from the challenges faced.