In order to lose weight, you need to be burning more calories than you’re consuming. And usually, we end up burning less calories than we think we are. For instance, when you go for an hour long run, you think burned 500 cal, but you burned probably 250. And you’re probably thinking, “wow 250? That’s still really good!” Which yes, it is. But then, you end up eating a sandwhich, greek yogurt, a granola bar, fruit, some coffee (with creamer), and that was just lunch. Not to mention the snacking on choco chips or goldfish here and there when you pass the kitchen.