BACKGROUND:Although dietary fiber could be an important dietary factor for prevention and control of noncommunicable diseases, there was no report on dietary fiber intake in the national Korean survey because of the absence of a proper dietary fiber composition table. The purpose of this work by the Korea National Health and Nutrition Examination Survey (KNHANES) was to develop a dietary fiber composition table for assessing dietary fiber intakes.
METHODOLOGY:The dietary fiber composition table was developed by compiling the food composition tables published by the agencies of Korea, United States, and Japan. When there was no available data from the same species or state of food (dried, boiled, etc.), the values were determined by estimating from the same species with different states or substituting familiar species according to biosystematic grouping. Using KNHANES VI-3 (2015) microdata and dietary fiber composition table, the Koreans’ dietary fiber intake was estimated.
RESULTS:Among the 5,119 food items in the dietary fiber composition table, the proportion of items of which dietary fiber contents were taken from the analytical values of the same foods was 41.0 %, and the estimated values were used for 46.4 % of food items. The rest was assumed as zero, or estimated with recipe database and nutrition labeling. Mean daily intake of dietary fiber was 22.7 g (11.4 g/1,000 kcal). The major food groups contributing to dietary fiber intakes were vegetables and cereals.
CONCLUSION:This dietary fiber composition table could serve as a useful database for assessing dietary fiber intakes and for investigating the association between dietary fiber intakes and noncommunicable diseases.
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