There's also the distinction between "losing weight" and "losing fat." The calorie in vs. calorie out method is great if you're simply focused on losing weight

There's also the distinction between "losing weight" and "losing fat." The calorie in vs. calorie out method is great if you're simply focused on losing weight, but if you're interested in losing fat, changing your body composition, or gaining muscle definition, you're going to have to dig a little deeper than just calorie counting – you'll need to look at the quality & types of foods you're eating.