Essay by carameleyesUniversity, Bachelor'sA+, May 2005

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Nutrition is the relationship of foods to the health of the human body. Proper nutrition means that you are receiving enough foods and supplements for the body to function at optimal capacity. It is important to remember that no single nutrient or activity can maintain optimal health and well being, although it has been proven that some nutrients are more important than others. All of the nutrients are necessary in different amounts along with exercise to maintain proper health. There are six main types of nutrients used to maintain body health. They are carbohydrates, fats, proteins, vitamins, minerals, and water. They all must be in balance for the body to function properly. There are also five major food groups. The groups are fats and oils, fruits and vegetables, dairy products, grains, and meats.

Exercise is also an important part of nutrition. Exercise helps tone and maintain muscle tissue and ensure that the body's organs stay in good condition.

Healthy eating without exercise will not result in good nutrition and a healthy body - neither will exercise without nutrition. The most important thing about exercise is that it be practiced regularly and that it be practiced in accompaniment with a healthy diet. It is also desirable to practice more that one sport as different sports exercise different areas of the body. Carbohydrates, proteins, and fats are the sources of energy for the body. The contained energy is expressed in calories. There are nine calories per gram in fat and there are about four calories per gram in proteins and carbohydrates. Carbohydrates are the main source of energy for the body. This energy is mostly used for muscle movement and digestion of food. Some sources of carbohydrates are grains, fruits, vegetables, and anything else that grows out of the ground. The energy...