LINEAR PROGRAMMING ANALYSIS OF CONSTRAINTS UPON HUMAN DIETS
运用线性规划成本最小化模型，分析营养与非营养因素对饮食选择的影响，评估采纳饮食指南对营养和可口饮食成本的影响，并估计不同人群满足营养需求的成本。
This paper applies linear programming cost‐minimisation models to the analysis of human diets. The models incorporate considerations of nutritional and non‐nutritional factors in diet choice in order to assess the impact of adopting dietary guidelines upon the cost of nutrition‐only and palatable diets. The dual prices yielded by the models are used to estimate the total cost of meeting requirements for separate nutrients in diets for different population groups. Sensitivity analysis is then used to derive marginal cost curves for changes in the supply of nutrients covered by the dietary guidelines. The cost and composition of ‘healthy’ human diets contrast markedly with the results of past studies and indicate that economic constraints upon dietary guideline adoption are limited.