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We Are What We Eat F An Analysis Of The Importance Of Nutrients To Human Health

1256 words - 5 pages

We are what we eat F--An analysis of the importance of nutrients to human health"We are what we eat", as a famous quotation, may be even more accurate than originally thought. Human beings require food to grow, reproduce, and maintain good health. Without food, bodies could not stay warm, build and repair tissue, or maintain a heartbeat. Generally, food provides certain chemical substances needed in order for a person to maintain good health. These chemical substances are called nutrients. With the improvement of living conditions, people realize that setting up a nutrient diet becomes very important nowadays. In this case, the essay will analyze the importance of nutrients to human health in the following three aspects: the function of nutrients, the relationship between nutrients and health and the importance to form a nutrient diet.It is essential to know the function of nutrients before analyzing their importance to human health. In principle, nutrients can be classified into 6 groups. They are Carbohydrates, Proteins, Fats, Mineral elements, Vitamins and Water. Each of them has a special function in the body, and all of them together are needed for overall health. Carbohydrates are a group of nutrients, which are the most available foods in the world. They are important in the diet as a source of energy. Research has proven that a daily diet high in carbohydrates is helpful. They constitute the base of a healthy eating plan. The second group of nutrients is proteins. Proteins are the main sources needed by the body to build strong muscles, repair tissues and maintain an effective immune state and hormonal system. Every cell in the body is partly made of proteins. Besides, scientists find that excess proteins in the diet can be used to store as fat. If carbohydrates, starches, or fats are unavailable, protein can be used to supply energy. Fats Cas the third group, provide our body a very concentrated source of energy. They are required by the body to prevent excessive loss of body heat. Carbohydrates, proteins and fats, in a word, constitute the basic structure of a human body and the body gets its fuel from them. The Mineral elements, as another group of nutrients, account for approximately 4% of body-weight. They help the body's metabolic process, proteins and vitamins to carry out their important functions. Certain amounts of minerals are needed to keep our bodies working properly. They are necessary for good health and growth. Vitamins, which serve as assistants, make it possible for other nutrients to be digested, absorbed and metabolized. They play a key role in energy production, growth, maintenance and repair. They are, however, only needed in small amounts, but must be obtained from diet, as the body cannot manufacture them. There are 13 vitamins needed by humans. Water, the most ordinary substance, is essential to life. All living organisms contain water; the human body contains about 65% water. It is a crucial component of good...

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