Method and system for nutrition survey and analysis on basis of semi-quantitative food frequency method

Abstract

The invention discloses a method and a system for nutrition survey and analysis on basis of the semi-quantitative food frequency method. The method includes the steps of (1), acquiring information about food for people under survey, classifying the food that the to-be-surveyed people taken within a certain time slot according to food classes, and then acquiring acceptable intake in each food class; (2), processing the acceptable intake of each food class acquired in the step (1) to obtain the daily average acceptable intake of each food class; (3), calculating according to the daily average acceptable intake in each food class on the basis of eating frequency of common food in each class and a food composition table to obtain daily average energy and daily average nutrient acceptable intake, from each food class, of the people under survey. Since the calculation mode and the analysis mode of the daily average nutrient acceptable intake are improved, the method and the system have the advantages of effectively solving problems that conventional nutrition analysis and survey modes are of poor representativeness or are not easy to realize quantitative analysis as compared with the prior art.

Description

technical field [0001] The invention belongs to the technical field of nutritional analysis of human body intake, and more specifically relates to a method and system for nutritional investigation and analysis based on a semi-quantitative food frequency method. The method and system are especially suitable for specific groups of people (pregnancy and pregnant women). Background technique [0002] Most of the current nutritional analysis and survey software is based on the 24-hour retrospective method, that is, the nutritional intake status is calculated based on the type and quantity of food ingested by the survey object in the past 1 or more 24 hours. The disadvantage of this method is that it is poorly represented. One 24-hour food intake cannot truly reflect the nutritional intake status of the analyzed subjects over a period of time, and it is difficult to implement multiple 24-hour dietary reviews or records. The food frequency method is to review the intake of various ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a method and system for nutritional investigation and analysis based on the semi-quantitative food frequency method, wherein the classification of the target food type when the key food information is collected in the method The specific statistical calculation methods and analysis methods in the settings, data analysis steps, and data comparison processing steps are improved. Compared with the existing technology, it can effectively solve the problems of poor representativeness and low reference of nutritional analysis and investigation methods. It is based on the food frequency method, according to the dietary characteristics of the subject to be tested and the nutritional characteristics of various foods, reasonably sets the classification and number of items of food categories and subcategories, and calculates the food intake ratio and food components of representative foods. The energy and nutrients of food can more comprehensively reflect the nutritional intake status of the object to be analyzed (that is, the person to be evaluated) over a period of time, taking into account the representativeness and accuracy of the data, and after multiple 24h dietary evaluation results in the target population Reliability and validity tests have good consistency, the evaluation results of this method are highly reliable and repeatable, and this method is easy to learn and master, and has good practical value

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