Korean Journal of Community Nutrition (대한지역사회영양학회지)

The Korean Society of Community Nutrition (대한지역사회영양학회)
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Status of Iodine Intake and Comparison of Characteristics according to Iodine-sourced Food Intake Patterns of Chinese Adults: A Study Encompassing Three Regions with Different Iodine Nutritional Statuses

중국 성인의 요오드 섭취 실태 및 요오드 급원 식품 섭취 패턴에 따른 특성 비교 -요오드 영양상태가 다른 세 지역을 중심으로

  • Danying, Zhang (Department of Food Science and Nutrition, Pusan National University) ;
  • Ho Kyung, Ryu (Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University)
  • 장단잉 (부산대학교 생활환경대학 식품영양학과) ;
  • 류호경 (부산대학교 생활환경대학 식품영양학과 및 김치연구소)
  • Received : 2022.06.27
  • Accepted : 2022.12.20
  • Published : 2022.12.31
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Abstract

Objectives: This study examines the status of iodine intake and compares the characteristics (region and thyroid disease prevalence) according to the iodine-sourced food intake pattern in Chinese adults. Methods: An online survey was conducted by enrolling 437 Chinese adults aged 18-65 years, living in three regions with different iodine nutritional statuses: Sichuan, Chongqing, and Guangdong. Results: The prevalence of thyroid diseases in Sichuan, Chongqing, and Guangdong were 12.5%, 8.5%, and 2.8%, respectively. Conversely, the proportion of people who received thyroid disease-related examinations was a mere 37.5%. Among the subjects who underwent thyroid examination, the prevalence of thyroid disease in the three regions was 32.2%, 21.8%, and 8.0%, respectively. No differences were obtained in the total iodine intake by region, but the type of iodine source foods differed. Regardless of the region, the highest iodine content was obtained from seaweed. However, the iodine content from iodized salt and other foods differed significantly by region. Factor analysis revealed three food intake patterns according to the iodine food source. The study further determined regional differences and differences in the prevalence of thyroid disease according to food intake patterns. Conclusions: High salt intake can also increase iodine intake, which is thought to have an effect on the occurrence of iodine-excess thyroid disease. Hence, efforts focused on improving salty eating habits need to be implemented.

Keywords

References

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