Nutrition can be defined as food or nourishment needed to keep an organism growing, healthy and viable. It also refers to the process of providing or receiving food or other life-supporting substances. The study of nutrition covers the types of food needed to keep an organism thriving and the means by which the organism derives nourishment by the digestive process. Every living thing needs proper nutrition to survive. For human needs, nutrition can be as basic as gruel or as complex as a five-star meal.
Nutrition is interpreted as the study of the organic process by which an organism assimilates and uses food and liquids for normal functioning, growth and maintenance and to maintain the balance between health and disease. Also included is the idea of an optimal balance of nutrients and whole foods, to enable the optimal performance of the body.
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