In order to enjoy full health of the body food need the food need to contain All the essential nutrients according to the nature of the work they perform the nutrients are divided into three basic food groups.
Growth food for growth and maintenance of body
Energy food for energy and maintain temperature
Protective food for protection against the disease .
Growth food: is important in All process of life , protein should form about 15 to 25 ,% of the total calories i ,e about 20 40 gm/ day . Excessive protein that is not important for body .Normal physical and mental health maintenance of body repair and maintenance of tissues And under going of wear and tear from birth to death .From and integral hormone and enzymes .
Essential for the formation of the Hemoglobin ( hem -iron and globin mean protein ) and the antibodies for the blood .
Amino acids are the smaller digested form of the protein . The human body can synthesized the certain amino acids . If it has adequate source of protein but not produce which can not be synthesized and must be given in diet the protein can be given in All food .this is also called as first class proteins .
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