ENERGY AND CALORIES

THE CALORIES OF THE ALLOWANCES .

We are accustomed to think of the allowances in terms of flavor, or in terms of which easy or complicated it can be their preparation; but it is good also habituates to think of terms of all energy it is able to provide to the organism each food, energy that is measured in calories. The different energy value much of a food to other (and, consequently, different proportionally their value in calories), according to the quantity of energy substances that each one contains. The fats provide the adult I number of calories with relationship to their weight, nine calories for gram; the carbohydrates, as the sugar, the starch and starch, almost contribute the half that the fats: four calories for gram, and this it is also the caloric value of the proteins. And the alcohol, seven calories for gram, the water, the fiber, the vitamins the minerals and other components of the allowances, as the flavorings the colorings and the conservatives, don’t have any caloric value.

When one says that a food has a lot of caloric density, it means that it provides many calories in relation to its weight, the butter the alcohol and the chocolate have a lot of caloric density; on the other hand, the carrots and the lettuce that contain a lot of water, have little caloric density.

THE CALORIES AND THE CORPORAL WEIGHT.

So that the corporal weight is constant, every day it is necessary to balance the ingestion and the consumption of energy. If a person consumes but energy that those that you consumes or you spends her organism Iou accumulated in form of fat the remainder, for each 3500 non-volatile calories (that is to say, not used by the organism) she accumulates around 0.5 kg. of fat. On the other hand, if the person consumes or you spends but energy that the one that ingests her organisms used the energy ones that the cells are formed and Iou lost weight. The quantity of calories that you/they are needed to maintain constant the weight depends on the age, the stature, the train of life the constitution and the hereditary factors.

Tags: nutritional