How to Count Calories Eaten
How to Count Your Calories
A calorie is a measure of energy. Our bodies use the energy in the food we eat to stay alive and keep moving. When you eat something, your body uses the energy in the food just like a car uses the energy in gasoline. One peanut M&M, for example, contains about 10 calories. Most people need between 1600 and 2000 calories a day to maintain a steady balance of energy in and energy out.
If we take in more energy than we burn, we store up the extra energy for later use. The main way we store that energy is as fat. We all need at least some fat to stay healthy, but too often we eat way more than we burn and wind up unhealthy, with too much fat.
If we burn more energy than we take in, we use our extra fat for energy. In this way we become more lean by eating less than we need to keep our balance. The body senses the calorie deficit and uses our fat, and sometimes our muscle, to burn to keep us alive.
So the physics behind fat loss is simple and inescapable: if you eat more calories than you burn, you will slowly gain weight. This is the familiar calories-in-calories-out formulation, and I am living proof that it's true. With very few exceptions, eating more than you burn will make you fat, and eating less than you burn will make you lean.
(About those "few exceptions" -- some foods do burn quicker and dirtier than others. Simple carbohydrates, which in most diets means white flour and sugar, spike your insulin levels, which can make you add fat disproportionally.
Video: How to Calculate the Daily Calorie Deficit for Maximum Fat Loss : Nutrition Advice
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