The nutrition facts panel on the foods you buy may say 100 calories per serving, but if you are eating more than one serving you could easily double or triple your calorie intake without realizing it. If you are not measuring your cereal, weighing your salmon fillet, or counting your chips, you are probably not eating the suggested serving size. All those uncounted calories could be sabotaging your weight loss efforts. Here’s how to make the numbers work for you!