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July 1, 2016 05:40
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. Nutrition: the science of food, the nutrients and other substances therein, their action, interaction and balance in relation to health and disease, and the processes by which the organism ingests, absorbs, transports, utilizes and excretes food substances (Nutrition and Diet Therapy Reference, 1996).In order to get a further understanding of nutrition, describing nutrients is necessary as well as their purpose and function. According to the British Nutrition Foundation’s (BNF) website, a nutrient provides energy or a source for growth and maintenance of the body. Nutrients are categorized by macro- and micro-nutrients. | |
Macronutrients include carbohydrates, orotein, and fats. The BNF declares these are the nutrients organisms need the largest amounts of as they are responsible for energy and growth and maintenance. Micronutrients are essentials that are not needed in as large amounts, such as vitamins and minerals.It is important to note that not all vital components of a healthy diet are defined as a nutrient, such as water and fiber. | |
Protein serves very critical functions for nutrition, and outside of. The main purpose of DNA in the human body is the source for translating nucleotides into proteins. Proteins in turn carry out specific functions. One protein’s purpose is the cataylist between the reaction of hemoglobin and | |
While water is not classified as a nutrient, it serves maybe the largest purpose of any other substance in nutrition. A short list of its uses include removing waste through urine; controlling body temperature, heart rate, and blood pressure; and maintaining a healthy metabolism not to mention it is also constitutes most of the body (Hatfield, 2005). |
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