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Recommended Dietary Allowances (RDAs) are allocated to each food article as published in the Denmark Budget Methods in the Codex Alimentalius of the WHO/FAO Joint Committee when standards of pollutants in food are needed. When daily intakes of Food Additives and Contaminants need to be calculated, the Theoretical Maximum Daily Intake. (TMDI) and the Estimated Maximum Daily Intake (EMDI) have been generally used. TMDI and EMDI are calculated using the formulae shown below: [formula: see text] i: food article (i = 1, , n) A: standard value for food additives and contaminants X: mean weight of food article consumed daily l: rate of residue after cooking Exposure assessment should be more exact in order to meet social health needs and to help avoid unnecessarily strict regulations. The U. S. Food and Drug Administration (FDA) is continually improving its estimates of the dietary intakes of pesticides and essential minerals, and comparing these intakes with established safe or recommended dietary intake levels. Dietary survey methods have also improved in parallel, with examples being the USDA's Household Food Consumption Survey (1955 and 1965) and National Health and Nutrition Examination Survey II (1976-1980). In Japan, TMDI and EMDI have received more attention as methods of estimating the daily intakes of food additives and contaminants than has the Total Diet Study, even though the former are not as exact as the latter. The Japanese National Nutrition Survey is one of the most respected nutrition surveys in the world, because it has continued nationwide yearly since 1946. Nevertheless, it is very unfortunate that no one utilizes the Household Food Consumption Survey data for the estimation of intakes of food additives and contaminants, because that is not the primary purpose of the Japanese National Nutrition Survey. Practically, there are neither foods which have an uniform of food additives and contaminants nor individuals who consume uniform amounts of each food item. In this report the authors propose a revised estimation method for the daily intake of food contaminants and additives, based on food consumption data of 159 female volunteers, without using the National Nutrition Survey data. The results obtained are as follows: 1) This method succeeded in making clear the intakes of food additives and contaminants. Mean, maximum and minimum values and distribution curves for the target population were obtained. 2) The suggested name for this method is "Estimated Ecological Daily Intake (EEDI)", which is processed in terms of the food consumption structure for calculation, and methodologically estimated by food ecology.

A New Estimation of the Intake of Contaminants, Based on Daily Food Consumption Data.