Windham C T, Wyse B W, Hurst R L, Hansen R G
J Am Diet Assoc. 1981 Jun;78(6):587-95.
With data from the U.S. Department of Agriculture's nutrient densities of diets of 7,810 individuals more than 4 years old were evaluated by use of the Index of Nutritional Quality (INQ) and standard dietary allowances per 1,000 kcal. With the exception of vitamins A and C, the nutritional quality of food consumed by various sex-age groups was remarkably consistent, despite wide variations in total calories consumed. The average concentrations of calcium, iron, magnesium, and vitamin B6 were not sufficient to meet recommended allowances. The reasonableness of recommended standards and the utility of the nutrient density concept for improving food habits of the population are discussed in view of these new data.
利用美国农业部提供的数据，通过营养质量指数（INQ）和每1000千卡的标准膳食摄入量，对7810名4岁以上个体的饮食营养密度进行了评估。除维生素A和C外，尽管各性别年龄组摄入的总热量差异很大，但所消费食物的营养质量却非常一致。钙、铁、镁和维生素B6的平均含量不足以满足推荐摄入量。鉴于这些新数据，讨论了推荐标准的合理性以及营养密度概念对改善人群饮食习惯的实用性。
