The Nutrient Rich Foods Index helps to identify healthy, affordable foods
The Nutrient Rich Foods Index helps to identify healthy, affordable foods
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DOI：
10.3945/ajcn.2010.28450d
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发表时间：
2010-04-01
影响因子：
7.1
通讯作者：
Drewnowski, Adam
中科院分区：
文献类型：
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作者：
Drewnowski, Adam
营养丰富的食物（NRF）指数是一个正式的评分系统，根据食物的营养成分对食物进行排名。当与食品价格数据库结合使用时，它可以帮助识别既有营养又负担得起的食品。目的：我们的目的是通过使用NRF指数和美国农业部（USDA）的营养成分和食品价格数据集来识别健康，负担得起的食品和食品组。设计：美国农业部食品和营养数据库膳食研究1.0中的食品通过使用NRF指数进行评分。该NRF算法表示为9种营养素每日值的百分比之和（蛋白质，纤维，维生素A，维生素C，维生素E，钙，铁，镁和钾）减去3种营养素最大推荐值的百分比之和限制（饱和脂肪，添加糖和钠）。NRF分数和平均国家食品价格计算每卡路里，每美国食品和药物管理局定义serving.Results：9个美国农业部食品组提供不同的营养价值和成本的食品。鸡蛋、干豆和豆类以及肉类和奶制品是成本最低的蛋白质来源。牛奶和奶制品是钙的最低成本来源，而蔬菜和水果是维生素C的最低成本来源。牛奶、土豆、柑橘汁、谷类和豆类的整体营养与价格比比许多蔬菜和水果更有利。能量密集的谷物，糖果和脂肪提供了大部分的热量，但每dollars.Conclusion营养素较少：一个重要的应用程序的营养概况模型是帮助消费者确定食品，提供最佳的营养在一个负担得起的成本。美国临床营养杂志2010;91（增刊）：1095 S-101 S。
Background: The Nutrient Rich Foods (NRF) Index is a formal scoring system that ranks foods on the basis of their nutrient content. When used in conjunction with a food prices database, it can help identify foods that are both nutritious and affordable.Objective: Our aim was to identify healthy, affordable foods and food groups by using the NRF index and US Department of Agriculture (USDA) nutrient composition and food prices data sets.Design: Foods in the USDA Food and Nutrition Database for Dietary Studies 1.0 were scored by using the NRF index. This NRF algorithm was represented by the sum of the percentage of the daily values of 9 nutrients to encourage (protein, fiber, vitamin A, vitamin C, vitamin E, calcium, iron, magnesium, and potassium) minus the sum of the percentage of the maximum recommended values for 3 nutrients to limit (saturated fat, added sugar, and sodium). NRF scores and mean national food prices were calculated per calorie and per US Food and Drug Administration-defined serving.Results: Each of the 9 USDA food groups offered foods of diverse nutritive value and cost. Eggs, dry beans and legumes, and meat and milk products were the lowest-cost sources of protein. Milk and milk products were the lowest-cost sources of calcium, whereas vegetables and fruit were the lowest-cost sources of vitamin C. Milk, potatoes, citrus juices, cereals, and beans had more favorable overall nutrient-to-price ratios than did many vegetables and fruit. Energy-dense grains, sweets, and fats provided most of the calories but fewer nutrients per dollar.Conclusion: One important application of nutrient profile models is to help consumers identify foods that provide optimal nutrition at an affordable cost. Am J Clin Nutr 2010;91(suppl):1095S-101S.