As some others have noted, white flour products and other high-carb, high glycemic-index foods tend to lead to hunger in the short term and lethargy ('food coma

As some others have noted, white flour products and other high-carb, high glycemic-index foods tend to lead to hunger in the short term and lethargy ('food coma'). Anecdotally, I've noticed that if I eat a small breakfast high in protein - e.g. 3 eggs - then I don't get hungry for several hours. If I eat a large breakfast high in carbs - e.g. pancakes or waffles - then I am hungry much sooner.