Food and nutrition
Food and nutrition
Introduction:
Often deals with rights that have traditionally been satisfying diet of the instinct of hunger has appetite for food or love, without concern for the identification of what this food or its impact on the body, no doubt about that man needs to know: Why eat? What eats? And when eating? Eat and how much? And how to eat? To preserve his body for health and wellness, and this requires an understanding of the meaning and importance of weaning, and awareness of the role played by the different types of foods in the body.
What is the meaning nourished?
Nourished, quite simply, is for the body of the organism to food yet become digested, and their absorption and use similar materials for the installation of living material in the cells of the body, the body may benefit from these materials to generate energy to keep its vitality and activity, or used in the processes of growth and cell renewal, or in maintaining the health of organs and performance of its functions.
Diversity of food and the need for the body is:
Many different types of food, can be classified in several ways depending on the source or function or chemical structure, and there are elements of classification divides food into three basic groups: carbohydrates, fats and proteins, normally found in food in addition to the three main groups listed three other groups are: mineral salts , vitamins, and water
.
First: Carbohydrates Carbohydrates
Materials which contain the elements carbon, hydrogen and oxygen, and the proportion of hydrogen to oxygen by
The ratio of 1:2 and their presence in the water. Therefore, it is said about the carbohydrate complex of (carbon + water) (carbo hydrates). Available carbohydrates in many foods such as sugar, starch and cellulose - all food source plants.
Sugar: and is available in all types of sweets and candies, and fruit and refreshments. The varying degrees of complexity, and types of simple sugar glucose (Single grape sugar) and chemical composition (C6H12O6), sucrose (cane sugar, and maltose (barley sugar) and lactose (milk sugar). Sugars are produced from two molecules of sugar Union unilaterally after molecule of water on them.
If it united many molecules together in a long series, the output is called then starch, and produces more of the Union of molecules more complex substance known as cellulose.
Why the body needs carbohydrates?
Carbohydrates are the primary source of energy in the body because it is easy to digest and absorb and subsidence.
How much the body of carbohydrates per day?
The needs of the rights of about 4 - 6 grams per kilogram of body weight.
If the human body weight 70 kg, for example, the needs of an estimated 300 to 400 grams per day.
Resulting from the oxidation of every gram of carbohydrate 4 calories and therefore the amount of energy that will get this individual in today's
4 × 400 = 1600 calories (from carbohydrate intake only).
Intended Balsaralgmaii here kilo price
II: Fats Lipids
Are materials containing the elements carbon, hydrogen and oxygen, but in different proportions and complexity of the more, the percentage of hydrogen and carbon is larger than it is in the carbohydrates, unlike oxygen, which is available in a greater proportion of carbohydrates.
Fats are divided according to the sources into two categories:
A) Vegetable oils: such as olive oil, corn oil, sunflower oil ... Etc..
B) animal fat: such as butter, cream, cream, cheese, egg yolk, .. Etc..
And belongs to a group other materials the most important fat cholesterol, which gets him into human nutrition, as manufactured by the liver and is linked to atherosclerosis and gallstones.
Vegetable oils are in general easier Hima from animal fats.
Why does the body of fat?
1. Provide thermal energy for the body fat.
Given that energy is produced from the oxidation of one gram of fat is estimated at about 9 calories, more than double the amount of energy produced from the oxidation of the same amount of carbohydrates.
2. Fatty substances play a role in the growth and building cells. Where they enter in the composition of the contents of the cell and Ogshetha.
3. Earn fat food taste delicious and gives people a feeling of fullness due to the length of stay in the stomach.
How much body fat per day?
The needs of the rights of a daily average of about 75-120 g per day or the equivalent of 1-2 g per kg of body weight to be taken into account:
A) the amount of carbohydrates and sugar covered.
B) the type of work performed.
C) climatic environment in which there were.
(Preferably one-third of this amount only saturated fat of animal origin and two-thirds fat-saturated vegetable source).
III: protein Protenis
Materials which contain the elements carbon, hydrogen, oxygen and nitrogen, which combine together to be amino acids that are the building blocks of materials Albrootinp, and may contain proteins other elements such as sulfur and phosphorus, and protein materials can be divided according to the sources into two categories:
A) animal proteins: meat, such as different types and forms, eggs and milk (milk) and its derivatives.
B) plant proteins: can be obtained from plant sources such as legumes, including beans, soy beans, cowpeas, peas, lentils and chickpeas ... Etc..
There are also less likely in cereals such as wheat, barley, rice and others.
Why does the body of protein?
1) protein is of great importance in the process because it is nourished primarily responsible for building body tissues, growth and renewal for the wear out of them.
2) may be used in some cases, fuel for thermal power generation also occur in cases of colic and to refrain from eating, or when available in the amount of protein in the body than the amount required for construction.
How much protein the body needs per day?
The need of human proteins are estimated at about 1 - 1.5 grams per day per kilogram of body weight, an average of 75-100 g per day increase this amount in cases of pregnancy and lactation in women up to 2-2.5 grams per day per kg, rising ratio to about 3-4 g in children and take into account that half of this amount, at least from animal sources and the remainder of the plant sources.
Estimated energy resulting from the oxidation of one gram of protein by about 4 calories.
Fourth: minerals Mineral Salts
إd in building bones and teeth, and interference in the composition of cells and play an important role in the interactions that occur in the body.
V.: Vitamins Vitamins
These are chemicals complex structure, there are very small amounts of food the body can not build, and despite that the vitamins do not have heat value, but it is essential to life plays an important role in the completion of the chemical processes in the body, and decrease prejudice the vital body functions and lead to many disorders and diseases.
The word vitamin is derived from the words Vitamins Vital amine or amines vital because the first to discover these compounds it contains a task the Secretary-NH2 group in structure
Vitamins are divided into two groups:
A) fat-soluble vitamins: The vitamins A, D e, k.
B) water-soluble vitamins: The vitamins C, B group vitamins and is limited to 1, b 2, b 6, b 12.
It should be noted here that the vitamins that dissolve in fat stored in the human body unlike those that dissolve in water as the excess of which poses outside the body.
There are vitamins for the body can be reconstructed with other materials, as in vitamin K, some members of the group B, can be rebuilt with the help of bacteria that live in your body.
VI: Water
Water is about 60-70% of the weight of the human body, one of the key elements that are material necessities of life - Protoplasm - which gives blood its liquidity and enable it to perform many functions:
1 - facilitate all the interactions that take place within the body.
2 - easy to transport between cells and within the cell itself.
3 - regulate body temperature.
4 - constitute a mitigating factor of friction between the members of the body moving.
Stop the body's need for water on several factors including:
1 - ambient temperature.
2 - The type of food intake.
3 - effort being done by the person.
The body derives its need of water from three main sources are:
1) drink the water rights in the form of liquids.
2) the water rights by taking him food.
3) water produced from the oxidation of food within the cells of the body.
Introduction:
Often deals with rights that have traditionally been satisfying diet of the instinct of hunger has appetite for food or love, without concern for the identification of what this food or its impact on the body, no doubt about that man needs to know: Why eat? What eats? And when eating? Eat and how much? And how to eat? To preserve his body for health and wellness, and this requires an understanding of the meaning and importance of weaning, and awareness of the role played by the different types of foods in the body.
What is the meaning nourished?
Nourished, quite simply, is for the body of the organism to food yet become digested, and their absorption and use similar materials for the installation of living material in the cells of the body, the body may benefit from these materials to generate energy to keep its vitality and activity, or used in the processes of growth and cell renewal, or in maintaining the health of organs and performance of its functions.
Diversity of food and the need for the body is:
Many different types of food, can be classified in several ways depending on the source or function or chemical structure, and there are elements of classification divides food into three basic groups: carbohydrates, fats and proteins, normally found in food in addition to the three main groups listed three other groups are: mineral salts , vitamins, and water
.
First: Carbohydrates Carbohydrates
Materials which contain the elements carbon, hydrogen and oxygen, and the proportion of hydrogen to oxygen by
The ratio of 1:2 and their presence in the water. Therefore, it is said about the carbohydrate complex of (carbon + water) (carbo hydrates). Available carbohydrates in many foods such as sugar, starch and cellulose - all food source plants.
Sugar: and is available in all types of sweets and candies, and fruit and refreshments. The varying degrees of complexity, and types of simple sugar glucose (Single grape sugar) and chemical composition (C6H12O6), sucrose (cane sugar, and maltose (barley sugar) and lactose (milk sugar). Sugars are produced from two molecules of sugar Union unilaterally after molecule of water on them.
If it united many molecules together in a long series, the output is called then starch, and produces more of the Union of molecules more complex substance known as cellulose.
Why the body needs carbohydrates?
Carbohydrates are the primary source of energy in the body because it is easy to digest and absorb and subsidence.
How much the body of carbohydrates per day?
The needs of the rights of about 4 - 6 grams per kilogram of body weight.
If the human body weight 70 kg, for example, the needs of an estimated 300 to 400 grams per day.
Resulting from the oxidation of every gram of carbohydrate 4 calories and therefore the amount of energy that will get this individual in today's
4 × 400 = 1600 calories (from carbohydrate intake only).
Intended Balsaralgmaii here kilo price
II: Fats Lipids
Are materials containing the elements carbon, hydrogen and oxygen, but in different proportions and complexity of the more, the percentage of hydrogen and carbon is larger than it is in the carbohydrates, unlike oxygen, which is available in a greater proportion of carbohydrates.
Fats are divided according to the sources into two categories:
A) Vegetable oils: such as olive oil, corn oil, sunflower oil ... Etc..
B) animal fat: such as butter, cream, cream, cheese, egg yolk, .. Etc..
And belongs to a group other materials the most important fat cholesterol, which gets him into human nutrition, as manufactured by the liver and is linked to atherosclerosis and gallstones.
Vegetable oils are in general easier Hima from animal fats.
Why does the body of fat?
1. Provide thermal energy for the body fat.
Given that energy is produced from the oxidation of one gram of fat is estimated at about 9 calories, more than double the amount of energy produced from the oxidation of the same amount of carbohydrates.
2. Fatty substances play a role in the growth and building cells. Where they enter in the composition of the contents of the cell and Ogshetha.
3. Earn fat food taste delicious and gives people a feeling of fullness due to the length of stay in the stomach.
How much body fat per day?
The needs of the rights of a daily average of about 75-120 g per day or the equivalent of 1-2 g per kg of body weight to be taken into account:
A) the amount of carbohydrates and sugar covered.
B) the type of work performed.
C) climatic environment in which there were.
(Preferably one-third of this amount only saturated fat of animal origin and two-thirds fat-saturated vegetable source).
III: protein Protenis
Materials which contain the elements carbon, hydrogen, oxygen and nitrogen, which combine together to be amino acids that are the building blocks of materials Albrootinp, and may contain proteins other elements such as sulfur and phosphorus, and protein materials can be divided according to the sources into two categories:
A) animal proteins: meat, such as different types and forms, eggs and milk (milk) and its derivatives.
B) plant proteins: can be obtained from plant sources such as legumes, including beans, soy beans, cowpeas, peas, lentils and chickpeas ... Etc..
There are also less likely in cereals such as wheat, barley, rice and others.
Why does the body of protein?
1) protein is of great importance in the process because it is nourished primarily responsible for building body tissues, growth and renewal for the wear out of them.
2) may be used in some cases, fuel for thermal power generation also occur in cases of colic and to refrain from eating, or when available in the amount of protein in the body than the amount required for construction.
How much protein the body needs per day?
The need of human proteins are estimated at about 1 - 1.5 grams per day per kilogram of body weight, an average of 75-100 g per day increase this amount in cases of pregnancy and lactation in women up to 2-2.5 grams per day per kg, rising ratio to about 3-4 g in children and take into account that half of this amount, at least from animal sources and the remainder of the plant sources.
Estimated energy resulting from the oxidation of one gram of protein by about 4 calories.
Fourth: minerals Mineral Salts
إd in building bones and teeth, and interference in the composition of cells and play an important role in the interactions that occur in the body.
V.: Vitamins Vitamins
These are chemicals complex structure, there are very small amounts of food the body can not build, and despite that the vitamins do not have heat value, but it is essential to life plays an important role in the completion of the chemical processes in the body, and decrease prejudice the vital body functions and lead to many disorders and diseases.
The word vitamin is derived from the words Vitamins Vital amine or amines vital because the first to discover these compounds it contains a task the Secretary-NH2 group in structure
Vitamins are divided into two groups:
A) fat-soluble vitamins: The vitamins A, D e, k.
B) water-soluble vitamins: The vitamins C, B group vitamins and is limited to 1, b 2, b 6, b 12.
It should be noted here that the vitamins that dissolve in fat stored in the human body unlike those that dissolve in water as the excess of which poses outside the body.
There are vitamins for the body can be reconstructed with other materials, as in vitamin K, some members of the group B, can be rebuilt with the help of bacteria that live in your body.
VI: Water
Water is about 60-70% of the weight of the human body, one of the key elements that are material necessities of life - Protoplasm - which gives blood its liquidity and enable it to perform many functions:
1 - facilitate all the interactions that take place within the body.
2 - easy to transport between cells and within the cell itself.
3 - regulate body temperature.
4 - constitute a mitigating factor of friction between the members of the body moving.
Stop the body's need for water on several factors including:
1 - ambient temperature.
2 - The type of food intake.
3 - effort being done by the person.
The body derives its need of water from three main sources are:
1) drink the water rights in the form of liquids.
2) the water rights by taking him food.
3) water produced from the oxidation of food within the cells of the body.
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