Diet refers to the daily habit of eating things and the food that one eats in order to obtain the nutrients necessary for survival. Diet depends on social and economic factors, culture, individual andfamily(at sentence-end, falling tone) indicates a confident conclusiondevelopmentIt is influenced by stages, values, etc., and is diverse in its way of being. Also,human beingforbasic needsIt is one of the most important factors in the body, providing energy necessary for physical activity, and maintaining and repairing body tissues,human beingis growth anddevelopmentThe physiological significance of exchanging nutrients to maintain and improve health, and the psychological significance of being able to eat well and having new vitality and zest for life,communicationThe cultural significance of the event is multifaceted: it provides a place for people to meet and interact with each other, and it also has a social significance in that people learn social rules and manners.livingEating" as an action involves various organs and functions of the human body, from sensing appetite, putting food in the mouth, chewing and swallowing food, to digestion and absorption in the body.
Nursing professionals need to understand eating not only as a mere energy supply, but also from the viewpoint of the structure and function of the human body, and to understand and support eating from multiple perspectives, including psychological and socio-cultural aspects.

References
1) Hishinuma, Noriko (Author): Nursing Morphofunctional Nursing: Body from the Viewpoint of Daily Life Behavior, Revised Edition, Japan Nurses Association Press, 2006.
(2) Karen Holland, Jackie Solomon, Jane Jenkins, et al. (eds.) / Kawashima, Midori (ed.): Development of a life behavior nursing model by Roper, Logan, and Tierney, Elsevier Japan, 2006.
(3) Toru Fuseki (Author): Ningen wa nao de nao de eateru (Man eats with his brain), Chikuma Shobo, 2005.