Journal List > J Nutr Health > v.48(6) > 1081421

J Nutr Health. 2015 Dec;48(6):496-506. Korean.
Published online December 31, 2015.  https://doi.org/10.4163/jnh.2015.48.6.496
© 2015 The Korean Nutrition Society
Estimated dietary flavonoids intake of Korean adolescent: Based on the Korea National Health and Nutrition Examination Survey 2007~2012
Seong-Ah Kim,1 Shinyoung Jun,1 and Hyojee Joung1,2
1Division of Public Health Nutrition, Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul 08826, Korea.
2Institute of Health and Environment, Seoul National University, Seoul 08826, Korea.

To whom correspondence should be addressed. tel: +82-2-880-2781, Email: hjjoung@snu.ac.kr
Received May 07, 2015; Revised May 31, 2015; Accepted November 03, 2015.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


Abstract

Purpose

The purpose of this study was to estimate dietary flavonoids intake of Korean adolescents.

Methods

Using data from the 2007-2012 Korean National Health and Nutrition Examination Survey, a total of 3,957 subjects aged 12-18 were included in this study. We estimated individual daily intake of total flavonoid and six flavonoid classes including flavonols, flavones, flavanones, flavan-3-ols, anthocyanidins, and isoflavones by linking food consumption data with the flavonoids in the commonly consumed food database. The distribution of sociodemographic, health-related, and dietary factors according to flavonoids intake was examined.

Results

Average dietary flavonoids intake of the study subjects was 195.6 mg/d in girls, and 189.4 mg/d in boys. The highest flavonoids intake group consumed significantly more fiber, vitamin C, legumes, fruits, and vegetables (p < 0.01) and less fat, grains, meats and dairy foods than other lower consumption groups (p < 0.001). Dietary flavonoid intake showed negative correlation with waist circumference and systolic blood pressure (p < 0.05).

Conclusion

This study provided basic data for estimation of flavonoids intake of Korean adolescents. Further research will be required for analysis of the association of flavonoids intake and health-related factors such as cardiovascular risk factors.

Keywords: flavonoid; fruit; vegetable; adolescent; KNHANES

Tables


Table 1
General characteristics and total flavonoid intakes by sociodemographic and dietary lifestyle factors of the study population
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Table 2
The distribution of flavonoids intakes of the study population by sex and age group
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Table 3
Nutrients and food group intake according to the quartile of total flavonoids density
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Table 4
The regression estimates of several food group intakes on the flavonoid intakes
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Table 5
Top five food sources for the flavonoid intake among Korean adolescent
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Table 6
Sociodemographic, health-related and dietary lifestyle characteristics according to the quartile of total flavonoids density
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Notes

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (NRF-2014R1A2A2A01003138).

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