Calories
Calories are a collection of calories, a unit of measurement of the amount of thermal energy the body is inside to perform its normal functions. The source of this energy is the food we eat and the oxygen we breathe. It is also the amount of energy required to increase the temperature of one gram of water in the body. There is a difference in the volume of energies produced by the food contained in it, the carbohydrate component gives us four hundred calories per hundred grams, as well as in the proteins produce the same number, while fat produces nine hundred calories per hundred grams, and later we will mention the number of calories needed by the body a day While maintaining perfect health.
Quantity of calories in food
There are certain amounts that our bodies need calories during the day, which should be taken at a certain rate, so doctors recommend eating foods that contain carbohydrates by 50%, proteins by 35%, and fat should be taken at much lower rates up to 15%, to contain the The greater the amount of calories, and age plays a role in that number, for children and adolescents in the stages of growth and construction require their bodies in the day amounts of calories much larger than those needed by people over the age of forty.
Calorie balance in the body
We must balance the calories we get from food, and the calories we get to lose weight. The body converts extra calories into fat and stores it, to take advantage of them if there is a shortage of calories that we gain from food, when the amount of food is reduced The body uses the calories we get from our food by doing its natural vital activities such as breathing, digestion, thinking, and the activity of some organs such as the heart, liver and kidneys, and consumes By doing his usual daily activities, such as walking, running, and exercising.
The number of calories the body needs per day
We can not judge the number of calories the body needs without taking into consideration some things, such as age, height and weight. The quantity required by sex varies from male to female, as follows:
In males
- At the age of 11-14 years they need 2,000 to 2000 calories per day.
- 18-15 need 2,100- 2900 calories.
- 22-19 need 2500-3300 calories.
- 50-23 need 2000-2800 calories.
- 75-51 need 1650-2450 calories.
When females
- At the age of 11-14 you need 1500-3000 calories.
- 18-15 need 1200-3000 calories.
- 22-19 need 1700-2500 calories.
- You need 1600-2400 calories.
- 75-51 needs 1200-2000 calories.
The proportion of calories needed by males is significantly different from that needed by females, which is because the structure of males stronger and larger than females, and the amount of energy and effort they do more than females.