Nutrition general terms is the study of the efficiency of food to nourish the body. Human nutrition describes the processes whereby cellular organelles, cells, tissues, organs, systems and the body as a whole obtain and use necessary substances obtained from foods to maintain structural and functional integrity.
Human nutrition has the aim of health and well-being. It is a complex, multifaceted scientific domain indicating how substances in foods provide essential nourishments for the maintenance of life.
Nutrition plays a specific role. It is a science with many different applications and meanings to different specialists. It is a relatively a new science, having evolved from several other science disciplines in the 20th century and it continues to evolve today.
Nutrition can be divided into ‘pre-swallowing’ and ‘post swallowing’ aspects. The pre-swallowing considerations can be those related with the food supply and human individuality.
While post swallowing aspects concern the physiology of nutrition, including nutritional requirements of energy, protein and vitamin, align with the consequences of too little or too much of these nutrients.
The concept of human nutrition
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