TAILIEUCHUNG - Dietary Guidelines for Americans 2005

Some proposed calorie­lowering strategies include eating foods that are low in calories for a given measure of food (., many kinds of vegetables and fruits and some soups). However, when making changes to improve nutrient intake, one needs to make substitutions to avoid excessive calorie intake. The healthiest way to reduce calorie intake is to reduce one’s intake of added sugars, fats, and alcohol, which all provide calories but few or no essential nutrients (for more information, see chs. 6, 7, and 9). Special attention should be given to portion sizes, which have increased significantly over the past two decades (). Though there are no empirical studies to show a causal relationship between increased portion sizes and obesity, there are studies showing that controlling portion sizes helps limit calorie intake, particularly when eating calorie­dense foods (foods that are high in calories for a given measure of food). Therefore, it is essential that the public understand how portion sizes compare to a recommended amount of food (., serving) from each food group at a specific caloric level. The understanding of serving size and portion size is important in following either the DASH Eating Plan or the USDA Food Guide (see app. A). When using packaged foods with nutrient labels, people should pay attention to the units for serving sizes and how they compare to the serving sizes in the USDA Food Guide and the DASH Eating Plan. . | Dietary Guidelines for Americans 2005 . Department of Health and Human Services . Department of Agriculture dietaryguidelines i MESSAGE FROM THE SECRETARIES We are pleased to present the 2005 Dietary Guidelines for Americans. This document is intended to be a primary source of dietary health information for policymakers nutrition educators and health providers. Based on the latest scientific evidence the 2005 Dietary Guidelines provides information and advice for choosing a nutritious diet maintaining a healthy weight achieving adequate exercise and keeping foods safe to avoid foodborne illness. This document is based on the recommendations put forward by the Dietary Guidelines Advisory Committee. The Committee was composed of scientific experts who were responsible for reviewing and analyzing the most current dietary and nutritional information and incorporating this into a scientific evidence-based report. We want to thank them and the other public and private professionals who assisted in developing this document for their hard work and dedication. The more we learn about nutrition and exercise the more we recognize their importance in everyday life. Children need a healthy diet for normal growth and development and Americans of all ages may reduce their risk of chronic disease by adopting a nutritious diet and engaging in regular physical activity. However putting this knowledge into practice is difficult. More than 90 million Americans are affected by chronic diseases and conditions that compromise their quality of life and well-being. Overweight and obesity which are risk factors for diabetes and other chronic diseases are more common than ever before. To correct this problem many Americans must make significant changes in their eating habits and lifestyles. We live in a time of widespread availability of food options and choices. More so than ever consumers need good advice to make informed decisions about their diets. The 2005 .

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