苏黎世理工大学地图:关于健康饮食的文章，英文的。急!!

The importance of diet to health, especially in the prevention and cure of illness, is slowly becoming apparent. I endeavour to provide you with more than the basic, and usually inaccurate information on diet and nutrition. So whether you are a registered dietitian and want to brush up on the immense amount of information, or whether you just want to find out, for the first time what you should be eating, then this site is for you.

First I would like to talk about a very contentious word - diet. Many people don't like using this word, when referring to their eating habits, because they feel that it is humiliating to be on a diet. I am the opposite, as I am always on diet. Whether underweight, overweight, sick or fit, diet, by its Greek definition means the food eaten by an animal to maintain its state of health. So, when I talk about a diet I don't mean that you must necessarily lose weight, what I am referring to is the food that you should generally be eating, be it to build muscles, put on weight, lose weight or get rid of a cold.

This topic is as arguable as religion, politics and sex. There are always many different opinions relating to diet and nutrition. I am only going to present facts on the subject of nutrition as affirmed by the mainstream diet and nutrition world. The fallacies of the fringe will not be proposed, although they have been investigated by myself, so I know what the quacks are telling "Joe Public".

It has become apparent that the overconsumption of certain dietary components is now a major concern to people in the Western World. Foremost among them is the disproportionate consumption of fats, sodium, and sugars, at the expense of foods that may be more conducive to good health, such as foods high in complex carbohydrates and fiber (vegetables, fruit, and whole grain products).

The usual approach of the orthodox medical circles, when dealing with a disease, is to treat the symptoms with a remedy rather than removing the cause. Yet, by following the dietary guidelines of the nutrition and health authorities, that have been proven with epidemiologic studies to be scientifically correct, it is possible to achieve and maintain good health.

Dietary factors play a prominent role in five out of the ten leading causes of death for Americans. Thus, it is important to emphasize the relationship of diet to the occurrence of chronic disease and to understand how wholesome food is necessary for good health.

Foods contain nutrients essential for normal metabolic function. An imbalance in nutrient intake or the consumption of harmful substances is the underlying factor in many chronic diseases, such as coronary heart disease, diabetes, obesity, and some cancers.

To acquire these nutrients we have to eat foods that contain them and make choices about what foods shouldn't be eaten in excess. This is difficult and requires a comprehensive research base and much effort before it is possible to maintain good health.

Eating is a source of considerable pleasure and an important part of our lives. It is not necessary to lessen this pleasure by following a healthy diet plan. By knowing what nutrients are, how they relate to different diseases, and how to make choices in selecting and preparing foods, it is quite possible to feel good and enjoy life equally or more.