Activity burns calories, boosts our basal metabolism, helps to preserve muscle mass, and even helps control appetite. However, it is really unrealistic to depend on physical activity alone to lose weight or maintain a healthy weight. One pound is 3000-3500 calories. Reading Food Labels. If you have decided to lower your total dietary fat you will probably want to take a closer look at the new nutrition labels on all packaged foods.
Every label is required to list the total calories and fat calories of the food.
These two numbers are probably the most valuable information on the nutrition label. To determine percent calories from fat, the number that matters most to nutritionists and has the most impact on your overall dietary macronutrient profile, divide the two. For example, here is an analysis of spaghetti, spaghetti sauce, and ramen noodles. Because the spaghetti lacks the concentrated calories from fat, the serving size can be significantly increased, resulting in a more stomach filling satisfaction. It is for this reason that one can pay much less attention to portion size while eating very low fat foods.