Direct method of dietary assessment
NUTRITIONAL STATUS303 APRIL 10, 2021
Direct methods:
Direct methods involve dietary assessment at individual level and can be subdivided into two categories:
- Retrospective method
- Prospective method
Retrospective method:
Retrospective method collect data of food and beverages already consumed. Accuracy of these methods completely rely on the memory-of the respondents that what and how much they have eaten in the past times. Quantities of food eaten can be assessed by showing pictures and models of foods or with help f standard household measuring unit such as cups and spoons etc.
Diet history
Diet method is radiationally used to assess a person’ s dietary pattern over prolonged period of time such as over a month or year. The method not only collect information on the quantity and frequency of the food being consumed but also their complete preparation methods. Diet history method time was design by Bruke in 1940, which was based on three mandatory steps;
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