While it is important to be aware of consumption caloric when following a diet, we should not rely exclusively on the calorie count to assess our progress. This is so because only count calories assumes that all meals are used in the same way by the body, and the same radio. These are some reasons why this is not so not all calories are used for energy production. Essential fatty acids (Omega 3 and omega 6) are healthy fats that, like all fats contain 9 calories per gram, but our body uses them for structural, hormonal functions rather than for energy. To relatively high levels of consumption, these fatty acids promote the burning of fat, resulting in a loss of weight.
After an injury, proteins and fatty acids used to rebuild cellular structures and new fabrics, rather than be used as energy. These examples illustrate that not all calories are used for energy production. We burn calories at different radii metabolism differs from person to person, a time to in the same person and according to the mix of nutrients. Genes, hormones, nutrition, exercise and health status, all affect metabolism. Some have a high metabolism and never gain weight no matter what they eat. The activity of the thyroid also affects metabolism. Lower range, fewer calories are burned and is easier to gain weight.
Essential fatty acids, complex B vitamin, vitamins and minerals including potassium, iron, magnesium, calcium and manganese increased the efficiency of oxidation and elevate metabolism, energy and activity levels. The State of health in which we find also affects our metabolism. During a fever or an infection burns more energy than when a person is healthy. Our level of mental activity also affects the use of calories. Our brain, despite being only 2% of our body uses about 20% of calories burned by our body. Satiety and hunger varies according to the meals eaten different foods they are digested, absorbed into the body, and are made available for use at different radii therefore have different values in terms satiety and hunger refer.