J Nutr Health.  2017 Dec;50(6):624-644. 10.4163/jnh.2017.50.6.624.

An iodine database establishment and iodine intake in Korean adults: Based on the 1998~2014 Korea National Health and Nutrition Examination Survey

• Ko YM
• Kwon YS
• Park YK

• KMID: 2401019
• DOI: http://doi.org/10.4163/jnh.2017.50.6.624

Abstract

PURPOSE
This study analyzed iodine intake by establishing an iodine database of general Korean foods eaten by Korean adults based on the data from the 1998 ~ 2014 KNHANES (Korea National Health and Nutrition Examination Survey).
METHODS
Data on 56,818 subjects aged 19 years and older were obtained from health behavior interviews and a 24-hour dietary recall survey. Iodine intake of subjects was analyzed according to general characteristics, dietary lifestyle, food groups, and cooking method.
RESULTS
An iodine database was established for 312 food items. The mean iodine intake of Korean adults decreased from 641.6 μg in 1998 to 236.2 μg in 2014 per day. Iodine intake of women was higher than that of men. For age distribution, those aged 30 ~ 49 years constituted more than 39 ~ 46% of subjects by survey year. Regarding iodine intake according to dietary lifestyle, the highest iodine intake was 29.4 ~ 34.4% for lunch while that of breakfast decreased. The highest iodine contribution by food group was seaweed such as kelp, sea mustard, and laver.
CONCLUSION
The results of this study indicate that iodine intake of Korean adults has been decreasing, and iodine intake is associated with the prevalence of thyroid disease. This study provides basic data for the estimation of iodine intake in Korean adults.

Keyword

iodine; functional food; database; KNHANES; Korean adults

MeSH Terms

Adult*
Age Distribution
Breakfast
Cooking
Female
Functional Food
Health Behavior
Humans
Iodine*
Kelp
Korea*
Life Style
Lunch
Male
Methods
Mustard Plant
Nutrition Surveys*
Prevalence
Seaweed
Thyroid Diseases
Iodine

Figure

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  Fig. 1 The flow of this study

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