The title to this article is very manipulative and misleading.<p>Weight loss seems to be a mysterious science to the everyday man and woman, but is well known by most top athletes and has been for many years.<p>It is simple chemistry. The calories you eat are stored in fat, which is comprised of O, H and C. Roughly ~3500 calories will become one pound of bodyfat. By this logic, yes you can eat less calories and lose weight. If you are burning 2500 calories per day, and you opt to eat only 2000 calories per day you should lose aprox. 1 lb of body fat per week (500 * 7 = 3500).<p>On the other hand, exercise is very important in weight loss. Muscle mass is expensive to maintain, and every lb of muscle mass can take 30-50 cals per day just to maintain. This increases your daily calories burned, allowing you to eat more food w&#x2F;o weight gain or keep the same food and lose weight.<p>Additionally, when you exercise and convert the fat to energy the fat is released in various forms of O, H and C. Most of it is breathed out, and some comes out in liquid form. This is literally weight you are losing. Each atom has a molecular weight, be it O, H or C. And if you want to do the math you can figure out how much weight you are losing per exercise per hour.<p>The reason some people believe low carb diets are the best for weight loss, is directly tied to exercise. Quickly avail. energy known as glycogen is stored in your muscles and used up before fat. It is created from carbohydrates. Without glycogen in your muscles, you will burn fat first.