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What is Nutrition and Why Is It Important? Essay

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What is nutrition? Why is nutrition important? Nutrition, nourishment, or aliment, is the supply of materials - food - required by organisms and cells to stay alive. In science and human medicine, nutrition is the science or practice of consuming and utilizing foods (MNT, 2014). A nutrient is a source of nourishment, an ingredient in a food, e.g. protein, carbohydrate, fat, vitamin, mineral, fiber and water. Macronutrients are nutrients we need in relatively large quantities. Micronutrients are nutrients we need in relatively small quantities (MNT, 2014). The six common substances that are known to be essential for the human body to function properly are carbohydrates, lipids, proteins, vitamins, minerals, simple sugars and water.
Carbohydrates are compounds of carbon, hydrogen, and oxygen, which provide the body with energy when they are broken down in cellular respiration (LABS-AIDS INC., 2012). Starches and sugars are considered two carbohydrates. Our bodies use carbohydrates to make glucose also known as sugar, which gives you energy and helps keep everything going. Our bodies use glucose immediately or stores it in our liver and muscles for when it is needed. Carbohydrates found in fruits, vegetables, grains (cereal, breads, etc.), milk, and foods with added sugars. The foods that contain added sugars, such as cakes and cookies, are considered to be “bad” carbs in most cases. “Good” carbs can be found in natural foods, such as strawberries and bananas.
Fats like Lipids are an important source of energy; however, fats and proteins take longer to break down. Fats and carbohydrates both have compounds which contain carbon, hydrogen, and oxygen. Fats contains more carbon and hydrogen atoms than oxygen whereas lipids are solu...


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...(n.d.). Medical News Today. Retrieved February 27, 2014, from http://www.medicalnewstoday.com/articles/196279.php
What are vitamins? What vitamins do I need?. (n.d.). Medical News Today. Retrieved February 25, 2014, from http://www.medicalnewstoday.com/articles/195878.php
What Are Simple Sugars?. (2013, October 13). LIVESTRONG.COM. Retrieved February 27, 2014, from http://www.livestrong.com/article/379749-what-are-simple-sugars/
Mineral Definitions. (n.d.). Mineral Definitions. Retrieved February 27, 2014, from http://webmineral.com/Mineral_Definition.shtml#.Uw-mzLS9bmN
What is Vitamin C?. (n.d.). What is Vitamin C?. Retrieved February 27, 2014, from http://www.news-medical.net/health/What-is-Vitamin-C.aspx
What is nutrition? Why is nutrition important?. (n.d.). Medical News Today. Retrieved February 27, 2014, from http://www.medicalnewstoday.com/articles/160774.php



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