Assessment of dietary iodine intake and its sources among Koreans: a cross-sectional analysis from the Korea National Health and Nutrition Examination Survey 2019-2021.

ABSTRACT:

Background/objectives

Iodine is an essential mineral that is critical for humans, as inadequate and excessive intake can lead to adverse health outcomes. Data on dietary iodine intake and adequacy among Koreans remain limited. This study aimed to estimate the dietary iodine intake of Koreans, assess the adequacy of intake, and examine the primary dietary sources of iodine in the Korean population.

Subjects/methods

This study analyzed data from 18,895 participants aged ≥ 1 yr obtained from the Korea National Health and Nutrition Examination Survey (KNHANES) 2019-2021. Dietary iodine intake was calculated using a newly constructed iodine database applied to KNHANES data. Intake levels were compared against the sex- and age-specific reference values outlined in the Korean Dieta

SUBMITTER: Shim JS 

PROVIDER: S-EPMC12518750 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature