Estimation of the nutrient intake in Thailand

―Evaluation of semi-quantitative food frequency questionnaires to assess habitual dietary intake in young Thai―

Abstract

　We developed two kind of semi-quantitative food frequency questionnaire (FFQ) for estimating habitual nutrient intake from young Thai. One FFQ is developed to modify the Japanese FFQ according to the data from dietary record of 56 young Thai (Thai_FFQ1). The other FFQ is developed to add the portion size of intake per one meal to the FFQ using Thai national nutritional survey (Thai_FFQ2). To increase the precision of answer of Thai_FFQ2, we developed photographic inventory which listed food items with each portion size. Both Thai_FFQ1 and Thai_FFQ2 were conducted 252 Thai young and foods and nutrient intake were calculated. We found high correlation between nutrients estimated by Thai_FFQ1 and those by Thai_FFQ2.