Journal of Nutrition and Health

The Korean Nutrition Society (한국영양학회)
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Association between green tea consumption and metabolic syndrome among Korean adults: results from the Health Examinees study

한국 성인의 녹차 섭취와 대사증후군과의 연관성: 한국인 유전체 역학 조사사업 자료를 기반으로

  • Hyeonjin, Cho (Department of Food and Nutrition, Chung-Ang University) ;
  • Sunwoo, Han (Department of Food and Nutrition, Chung-Ang University) ;
  • Jiwon, Jeong (Department of Food and Nutrition, Chung-Ang University) ;
  • Hyein, Jung (Department of Food and Nutrition, Chung-Ang University) ;
  • Sangah, Shin (Department of Food and Nutrition, Chung-Ang University)
  • Received : 2022.12.22
  • Accepted : 2023.01.30
  • Published : 2023.02.28
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Abstract

Purpose: Several studies have been conducted on the relationship between green tea intake and metabolic syndrome. However, compared to the studies carried out internationally, there is inadequate research on the relationship between domestic green tea consumption and metabolic syndrome. Therefore, in this study, the general characteristics of Koreans according to their green tea intake and its association with metabolic syndrome were examined. Methods: A total of 44,611 subjects were included in the study, and analysis was carried out using data from the Korean Genome and Epidemiology Study (KoGES) for Korean adults aged 40 or older. Green tea consumption was estimated using 106 verified food frequency questionnaires (FFQ). Metabolic syndrome was defined using the National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP III) parameters. After adjusting for confounding variables by performing a Cox regression analysis, the association between green tea consumption and metabolic syndrome was confirmed through the hazard ratio (HR) and 95% confidence interval (CI). Results: The average incidence of metabolic syndrome was 18.7% (20.8% in men and 17.8% in women). Compared to those who drank almost no green tea, in subject groups consuming more than one cup of green tea a day, the metabolic syndrome incidence was significantly reduced by 15% (HR, 0.85; 95% CI, 0.74-0.96; p trend = 0.0200) among men and by 19% (HR, 0.81; 95% CI, 0.73-0.90; p trend < 0.0001) among women. In addition, the biomarkers related to metabolic syndrome also tended to decrease overall in these groups. Conclusion: This study concluded that as the intake of green tea increased, the incidence of metabolic syndrome and related indicators decreased. Therefore, green tea intake is believed to have a positive effect on the prevention and management of the metabolic syndrome.

본 연구는 40-69세 한국 성인 남녀를 대상으로 녹차섭취량에 따른 대사증후군 발생 위험을 조사하였으며, 연구 결과로 남녀 모두 녹차 섭취량이 증가할수록 대사증후군과 관련지표의 발병률이 감소하는 경향을 보였다. 특히 추가 보정을 진행한 결과에서 여성에서 대사증후군발생이 유의하게 감소하였다. 따라서 본 연구의 결과를 토대로 녹차 섭취가 대사증후군에 긍정적인 영향을 미치며, 이러한 결과를 기반으로 대사증후군 예방을 위한 녹차 섭취 수준에 대한 추가 연구가 필요하다. 한편 국내 녹차 시장은 녹차를 습관적으로 우려 마시는 사람들이 적고 녹차를 가공한 형태인 말차 (가루녹차)와 발효차 등 섭취 방법이 다양하므로 녹차의 효능 정보를 효과적으로 식단에 활용하기 위해서는 녹차를 활용한 가공품과 보조제에 대한 추가 연구가 필요하다.

Keywords

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