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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 9 calories per gram in

fat and there are about 4 calories per gram in proteins and carbohydrates .

Carbohydrates are the main source of energy for the body. This energy is mostly

used for muscle...