Nutrition and Your Health, Dietary Guidelines for Americans, Second Edition

摘要

What should you eat to stay healthy. The first two guidelines form the framework for a good diet. 'Eat a variety of foods' that provide enough of essential nutrients and energy (Calories) to 'maintain desirable weight.' The next five guidelines describe special characteristics of good diets. They suggest that you get adequate starch and fiber and avoid too much fat, sugar, sodium, and alcohol. The Recommended Dietary Allowances (RDA) are suggested amounts of energy, protein, and some minerals and vitamins for an adequate diet. For other dietary substances, specific goals must await further research. However, for the U.S. population as a whole, increasing starch and fiber in our diets and reducing calories (primarily from fats, sugars, and alcohol) is sensible. These suggestions are other risk factors for chronic diseases, such as family history of obesity, premature heart blood cholesterol levels, or for those who use tobacco, particularly cigarette smokers. The guidelines are suggested for most Americans-those who are already health. They do not apply to people who need special diets because of diseases or conditions that interfere with normal nutritional requirements. These people may need special instruction from registered dietitians, in consultation with their own physicians. No guidelines can guarantee health and well-being.