Journal List > J Nutr Health > v.48(1) > 1081398

J Nutr Health. 2015 Feb;48(1):30-45. Korean.
Published online February 28, 2015.
© 2015 The Korean Nutrition Society
Weight loss effects of Bariatric Surgery after nutrition education in extremely obese patients*
Eun-Ha Jeong,1 Hong-Chan Lee,2 and Jung-Eun Yim1
1Department of Food & Nutrition, Changwon National University, Changwon, Gyeongnam 641-773, Korea.
2CHAN Bariatric Surgery Hospital, Seoul 135-887, Korea.

To whom correspondence should be addressed. Email:
Received September 18, 2014; Revised November 12, 2014; Accepted December 30, 2014.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.



This study was planned to determine the characteristics of extremely obese patients during Bariatric surgery and to evaluate how the difference in the number of postsurgical personal nutritional educations they received affected the weight loss.


This is a retrospective study on the basis of the medical records of extremely obese patients for 15 months after receiving gastric banding. A total of 60 people were selected as the study subjects and they were divided into the Less Educated Group and the More Educated Group according to the average number of personal nutritional educations they received. We investigated both groups to determine the general characteristic, health related lifestyle habits, obesity related complications and symptoms in possession, and eating habits before their surgery, the body composition measurement result, obesity determination indices at 1, 3, 6, 9, 12, and 15 months before and after their surgery, and the biochemical parameters at 6 months before and after their surgery.


Body fat and weight showed rapid reduction until 6 months after the surgery, but thereafter reduced slowly depending on the result of body composition measurement. Regarding body fat and weight, the More Educated Group, who received nutrition education more often, showed significantly lower levels than the Less Educated Group at 15 months after surgery. Regarding BMI and degree of obesity, the More Educated Group showed significantly lower levels than the Less Educated Group at 15 months after surgery. Here, we were assured that BMI is reversely proportional to the number of personal nutritional educations at 15 months, which is more outstanding after surgery than before surgery.


Long-term nutritional education is a key factor for the extremely obese patient in maintaining the effects of Bariatric surgery on weight and body fat reduction onwards. In the next stage, considering the characteristics of the study subjects, adoption of individual nutrition education is recommended for postsurgical prospective arbitration of obesity in order to monitor blood pressure, obesity related complications, symptoms in possession, and how eating habits and health related life habits change, and to judge the actual effect of the nutritional education method at the same time.

Keywords: bariatric surgery; nutrition education; severe obese patients


Fig. 1
Weight changes of preoperation and postoperation
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Table 1
Nutrition education contents
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Table 2
General characteristics of the subjects according to level of education
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Table 3
Health-related lifestyle of the subjects according to level of education
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Table 4
Obesity complications of the subjects according to level of education
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Table 5
Dietary habits of the subjects according to level of education
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Table 6
Nonoperative treatments of the subjects according to level of education
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Table 7
Body composition of the subjects according to level of education1)
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Table 8
Change of nutritional assessment index1)
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Table 9
Blood biochemical parameters in preoperation and 6 months postoperation1)
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This work was supported by Basic Science Research Program through the National Research Foundation of Korea funded by the ministry of Education, Science and Technology (2013R1A1A3010917).

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