Journal List > Korean J Nutr > v.43(1) > 1043841

Korean J Nutr. 2010 Feb;43(1):46-56. Korean.
Published online February 28, 2010.
© 2010 The Korean Nutrition Society
Effects of Low Glycemic Index Nutrition Education on the Blood Glucose Control in Patients with Type 2 Diabetes Mellitus
Mi-Ja Kim,1 Sunja Kwon,2 and Sun Yung Ly1
1Department of Food and Nutrition, Chungnam National University, Deajeon 305-764, Korea.
2Department of Nutrition and Foodservice Management, Paichai University, Deajeon 302-735, Korea.

To whom correspondence should be addressed. (Email: )
Received January 09, 2010; Revised January 25, 2010; Accepted February 04, 2010.


This study was intended to assess the effects of low glycemic index (LGI) nutrition education on dietary management and glycemic control of patients with type 2 diabetes mellitus. The subjects were 48 sex-matched patients with type 2 diabetes mellitus, aged 66.5 ± 6.2 years, visiting a public health center. They were divided into two groups: the control group (males 10, females 14) and the educated group (males 10, females 14). The educated group was provided with a LGI nutrition education program for 7 weeks. The control group was educated only one time for general diabetic education. Anthropometric indices, knowledge and perception of efficacy of low glycemic index carbohydrates, dietary glycemic index (DGI) and glycemic load (DGL), fasting blood glucose, and HbA1c were assessed. In the educated group body weight, body mass index and systolic blood pressure (from 138.0 ± 18.9 mmHg to 130.6 ± 15.0 mmHg) were significantly reduced after the nutrition education (p < 0.05). The scores of knowledge and perception of efficacy of low glycemic index carbohydrates increased significantly in the educated group. Dietary glycemic index and glycemic load of the educated group decreased significantly from 103.4 ± 67.6 to 45.4 ± 27.1 (p < 0.001), and from 173.3 ± 135.9 to 66.8 ± 50.4 (p < 0.001), respectively. Also fasting blood glucose and HbA1c levels of the educated group significantly decreased from 124.5 ± 28.8 mg/dL to 96.7 ± 21.6 mg/dL (p < 0.001) and from 7.1 ± 1.3% to 6.4 ± 1.2% (p < 0.05), respectively. The score of knowledge and perception of efficacy of low glycemic index significantly correlated with fasting blood glucose and HbA1c levels negatively. DGI, DGL and duration of diabetes significantly correlated with HbA1c level positively. From stepwise multiple linear regression analysis, DGI, DGL and the duration of diabetes were extracted as factors influencing HbA1c level of the subjects. The results of this study suggest that low glycemic index nutrition education programs is an effective intervention measure for the glycemic control in type 2 diabetic patients.

Keywords: diabetes mellitus; low glycemic index nutrition education; dietary glycemic index; dietary glycemic load; HbA1c


Table 1
General characteristics of the subjects
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Table 2
Diabetes related characteristics of the subjects
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Table 3
Anthropometric measurements of the subjects before and after nutrition education
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Table 4
Changes in the scores of the knowledge and perception of efficacy of low glycemic index carbohydrates before and after low glycemic index nutrition education program
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Table 5
Changes of dietary glycemic index and glycemic load of the subjects' diet according to low glycemic index nutrition education
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Table 6
Changes of fasting blood glucose and HbA1c after low glycemic nutrition education
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Table 7
Pearson's correlation coefficients between fasting blood glucose or HbA1c and general and diet related variables of the subjects
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Table 8
Stepwise multiple linear regression analysis of factors related to HbA1c concentrations in subjects
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