Human Health

                                                                           Human Health

The health is wealth and a  great gift from God Almighty. Human health not only depends upon the type of the food we take in but also on the fact whether a man is acquainted of all the phenomenon occurring in its body. Only after having a comprehensive knowledge of all these of diet to maintain the human health but we shall also try to investigate both intrinsic and extrinsic factors that influence human health and how a man can cope with all these challenges.

                                                                  Food and its Major Components

Food is the basic necessity of human life. Scientifically speaking food i any thing which after digestion provides energy to the body for various activities and also helps in its growth and development.

                                                                                      

                                                                                  Water

Water is utmost important for life.  A man can survive  without food for at least  a month but just for a few days without water. it is the most important component of human body. it makes almost 60% of an adult body weight. Water performs a number of very important functions in human body. It help to maintain our body temperature. It acts as a medium for various chemical reaction in body. 

                                                                             Carbohydrates

They accur abundantly n all the living organisms and in almost all the cells. Cellulose of wood. cotton and paper, starch present in muscles of animals. lactose of milk and sucrose of cane are all examples of carbohydrates.

They play an important structural and functional role in living organisms. They are the primary source of energy for the cell. Wheat. rice. pulses, sugarcane, potato, beat, are major sources.

                                                                                 

                                                                                    Fats

Lipids are classified as fats and oils. Fats are solid while oils are liquids at room temperature. Fats areobtained from animals while oils are produced from plants. The lipids are formed by the chemical 

combination of fatty acids with glycerol.

Butter, cream, corn oil, ghee are the examples of lipids.  Fats provide a large amount of energy to our body as compared to carbohydrates and proteins. They provide the body with fat soluble vitamin. They accumulate below the skin and help to conserve the body heat. In addition they also protect the vital organs of our body such as heart. liver, kidney from mechanical injuries.

Proteins

After water, the proteins are the most abundant of all chemical substances in the body. The muscles, tissues and blood all are made up of proteins. They perform such important functions in body which would otherwise be impossible to occur. These are the large complex molecules made up by the condensation of amino acids that are the building blocks of proteins molecules.

They can be obtained from both plants and animals. Milk, egg, meat, fish are the animal sources of proteins whereas wheat, beans, pulses etc are its plant sources.

Proteins act as enzymes to catalyze various chemical reactions of the body. They act as hormone and bring about co-ordination in various physiological activities of the body.

They defend the body against various diseases by producing anti bodies and so induce an immune response.

They also help in transporting various materials from one part of the body to the other e.g. hemoglobin.

Vitamins

These are the organic substances which are needed in the body in fractions only. Theyact as co-enzymes in most of chemical reactions in the body. The body cannot grow normally if they are not taken in regularly. They can be divided into two groups.

                                                         1.    Fat-Soluble Vitamins      : (A,D,E,K)

                                                         2.    Water-Soluble Vitamins  : (B,C)