Korean Journal of Community Nutrition

[English]
A Survey on Nutrient Intakes by Infant Formula and Supplemental Foods of Formula-Fed Infants in Seoul Area: Soo Jung Jang, Ji Hye Shin, Yeon Sook Lee; Korean J Community Nutr 2004;9(3):251-262. Published online June 30, 2004

Abstract PDF: The aim of this study was to assess the nutrient intakes from infant formula and supplemental foods of 246 healthy infants fed infant formula, aged from 5 to 18 months. Subjects were devided into two groups depending on supplemental food type for weaning, Domestic supplemental foods (mainly home-made, n = 129) and Delivery supplemental foods (mainly commercially-delivered, n = 117). Four subgroups were assigned to 5 - 6 months, 7 - 8 months, 9 - 11 months, and 12 - 18 months by ages, respectively. Dietary assessment was carried out using 24-hour-recall method. Formula intakes in the delivery group tended to decrease accordingly with the ages. However, in the domestic group, formula intakes up to 8 month were similar and decreased after 9 month. Energy, protein, calcium and iron intakes from infant formula and supplemental foods were assessed. Energy intake at 12 - 18 months were lower than the RDA in both groups. Daily intake of protein and calcium at all ages were much higher than the RDA in both groups. Therefore, protein and calcium overnutrition were elucidated. Especially, protein intake at 5 - 6 months, calcium intake at all ages from infant formula was higher than the RDA in both groups. Iron intake at 5 - 6 months from infant formula were higher than the RDA. Consequently, as for infant formula, it was suggested that not only formula intakes but also nutrient content in formula should be reconsidered. On the other hand, nutrient intakes from supplemental foods in the domestic group tended to be higher than that of the delivery group. Especially at 9 - 11 months, significant differences between the two groups were observed. This may be due to high dependency on commercial powdered baby food in the domestic group. This study revealed that daily nutrient intakes of formula-fed infants are desirable but nutrient intakes from infant formula are too high. Conclusively, this study suggests that as the age of infants increases, formula intakes should be controlled and various supplemental foods besides commercially powdered baby food should be appropriately provided.

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[English]
Studies on Fatty Acid Intake Patterns, Serum Lipids and Serum Fatty Acid Compositions of High School Students in Seoul: Eun Jung Chung, Hong Seok Ahn, Young Sook Um, Yang Cha Lee-Kim; Korean J Community Nutr 2004;9(3):263-273. Published online June 30, 2004

Abstract PDF: The purpose of this study was to investigate the pattern of individual fatty acid intake and to compare serum lipid levels and total serum fatty acid composition of high school students in Seoul (total:234;male:91;female:143). In serum lipid levels, total cholesterol (Chol.), HDL -Chol. and LDL-Chol. levels of female students were significantly higher than those of male students and there was no significant difference between High Fish & Low Meat intake (HFLM) and Low Fish & High Meat intake (LFHM) groups. The average fat intake was 22 - 25 energy % of total subjects and especially, that of LFHM group was 29%, which were over the recommendation level. Although the average P/M/S ratio of dietary fat was 1.1/1.2/1.0, the average range of omega 6/omega 3 fatty acid ratio of dietary fat was found to be 17.9 - 20.7, which was far beyond the suggested range, 4 - 10. The average intake of cholesterol of total subjects was 360mg. LFHM group had more meats and beverages such as carbonated drinks and tended to have less beans, vegetables and mushrooms. In addition, LFHM group had more energy and fat intake than those of HFLM group, the P/S ratio of dietary fat (0.73) was lower than the recommended ratio. Serum C16:0 composition of LFHM group was significantly higher than that of HFLM group, and EPA and DHA composition of HFLM was significantly lower than that of LFHM. Therefore, in HFLM group, the P/S ratio of serum fatty acids was significantly higher and the omega 6/omega 3 ratio was lower. Dietary C18: 0 was negatively correlated with serum EPA and DHA composition. Individual PUFA intake was negatively correlated with serum C16:0 and sum of SFA, and positively correlated with serum C18:2omega 6 (LA), sum of omega 6 and sum of PUFA. Serum C18:1, C18:3omega 3 and C20:4omega 6 (AA) compositions were not correlated with dietary fatty acid. Only serum triglyceride (TG) levels were significantly correlated with serum fatty acid compositions. Sum of SFA, C14:0, C16:0, sum of MUFA and C18:1 compositions were positively correlated with serum TG levels, but LA, AA, sum of PUFA and P/S ratio were negatively correlated with it.

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[English]
A Study on Eating Disorders and It's Related Factors in High School Girls: Wan Song Yoo, Youngnam Kim; Korean J Community Nutr 2004;9(3):274-284. Published online June 30, 2004

Abstract PDF: The purpose of this study was to examine the prevalence of eating disorders and the dietary, and psychological factors that influence eating disorders in high school girls. Data was collected from 4 vocational and 4 general girls' high schools in Incheon. Among the total of 595 questionnaires collected, 581 were analyzed. For data analyses, frequency, percentage, average, t-test, one-way ANOVA, Duncan's Post-Hoc and regression were conducted using SPSS WIN ver 10.0 program. As a result, 25 out of 581 students (4.3%) are judged to have eating disorders. The mean BMI of the subjects is 20.2, but the BMI students think of as ideal is 17.6. Since the frequencies of diet trial, taking diet pills, and skipping dinner are higher, the average score of Eating Attitudes Test for Korean Adolescents (EAT-26KA) is higher, they are more likely to have eating disorders. The lower the degree of body satisfaction and self esteem are, the higher the average score of EAT-26KA is. It tells that the possibility of developing eating disorders is closely related to BMI and psychological factors specially body satisfaction.

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[English]
A Comparison of Energy Intake and Energy Expenditure in Normal-Weight and Over-Weight Korean Adults: Jung A Park, Ki Jin Kim, Jin Sook Yoon; Korean J Community Nutr 2004;9(3):285-291. Published online June 30, 2004

Abstract PDF: The purpose of this study was to compare the energy expenditure and energy intake of normal-weight and overweight Korean adults. We recruited 242 adults to determine resting energy expenditure, physical activity and energy intake. Resting energy expenditure was measured by indirect calorimetry. Energy intake for consecutive two days was assessed by 24 hour recall method. Daily activity pattern for 24 hour was collected from each subject. Body weight, lean body mass and percentage body fat were measured by INBODY 3.0. The subjects were divided into normal (20 < or = BMI < 25) and overweight (BMI > or = 25) groups by BMI. There was no significant difference in intake of energy between two groups. Energy intake of each group was lower than the 7th Korean RDA of energy. Overweight subjects showed significantly lower REE/kg body weight. However, REE/kg lean body mass (LBM) did not differ between the two groups. Total activity energy was significantly higher in the overweight group compared to the normal group. Daily activity coefficient of overweight group in male was lower than that of normal group. Daily activity coefficient was almost same in two female groups. LBM was highly correlated with REE and total energy expenditure. We concluded that the overweight group consumed more energy than the normal group due to the heavier body weight.

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[English]
Comparison of Nutritional Status among Obese, Overweight and Normal Subjects in Seoul: Mee Sook Lee, Chung Shil Kwak, In Soon Kwon; Korean J Community Nutr 2004;9(3):292-302. Published online June 30, 2004

Abstract PDF: The nutritional status of middle-aged overweight and control normal subjects were evaluated for the purpose of providing the background information of the degenerative disease control. A survey was conducted with 293 healthy subjects (121 males and 172 females) between the ages 40 - 64. The average BMI (body mass index) of male subjects was 24.5 +/- 2.75, and that of females was 23.5 +/- 2.87. The average values of WHR (waist-hip ratio) were 0.88 +/- 0.04 for males and 0.82 +/- 0.07 for females. The normal BMI group (BMI 18.5 - 22.9) comprised 28.9% of males and 47.1% of females. The percentage of overweight subjects (BMI 23 - 24.9) was 26.4% of males and 30.8% of females. The obese group (BMI > 25) was 44.6% of males and 22.1% of females, showing the greater rate of obese state among male subjects. The average energy intakes were 76.6 +/- 14.9% for males and 77.8 +/- 12.6% for females, protein intakes were 108.0 +/- 24.6% for males and 111.2 +/- 22.7% for females of the RDA levels. The average intakes of other nutrients were above the 75% of RDA levels except calcium. The average nutrient intakes of the three subgroups according to their BMI values were not different for both males and females. There were weak correlations between obesity and blood biochemical indices. There were positive correlations between BMI or WHR and hemoglobin, hematocrit, fasting glucose, total cholesterol, triglyceride, AST or ALT. There were negative correlations between BMI or WHR and HDLcholesterol. These results suggest that the obesity rate of middle-aged is an influential factor of chronic disease. The middle-aged subjects of this study with higher educational and socioeconomic background tend to have desirable nutrition knowledge and attitude, but the application of their knowledge or attitude was relatively poor.

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[English]
Supplement Dose and Health-Related Life Style of Vitamin-Mineral Supplement User among Korean Middle-Aged: Yoon Jung Kim, Ju Ae Mun, Hyesun Min; Korean J Community Nutr 2004;9(3):303-314. Published online June 30, 2004

Abstract PDF: We studied daily micronutrient intake from vitamin-mineral supplements, health-related life style, clinical case of diseases and food frequency of the Korean middle-aged (40 - 59 yr, n = 404) to compare the characteristics of non-user (n = 270) and user (n = 134) of vitamin-mineral supplements. Rate of supplement use of the middle-aged was 33.2% and there was significant difference in education level (p = 0.0084) and family income (p = 0.0476) of user and nonuser. Smoking habit (p = 0.0844) and drinking frequency (p = 0.0606) tended to be lower in a supplement user than a non-user. The medical history of a case was significantly higher in users (67.9%) than in non-users (44.4%) (p = 0.001), which suggests that medical history is one of the important motivations of supplement use. Supplement users had the medical history of digestive disease (34.1%), anemia (11.0%) and hypertension (9.9%) in order. Vitamin C was the most frequently supplemented nutrient (81.3%) among vitamin-mineral supplement, and the next orders were vitamins E (73.1%), B2 (68.7%) and B6 (60.4%). Mean intakes of vitamin B1, iron, selenium, vitamin E, and vitamin C from supplement was 4,260%, 4,030%, 1,660% and 1,330% of RDA, respectively. The supplement users tended to consume most food items including milk & milk products (p < 0.01), rice (p < 0.01), grains (p < 0.05) and cookies (p < 0.01) less frequently than non-users. Conclusively, nutrient intake of vitamin B1, iron, selenium, vitamin E, and vitamin C from supplement was excessively high compared to RDA. We suggest that the toxic effect of excessive supplementation should be informed to supplement user and nutritional education should be focused on the optimal supplement dose.

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[English]
Developing Breakfast Menus for Most Easily Breakfast-Skipping Groups: Sim Yeol Lee, Yeon Sook Lee, Jung Sook Park, Young Hee Bai, Young Ok Kim, Young Sook Park; Korean J Community Nutr 2004;9(3):315-325. Published online June 30, 2004

Abstract PDF: This study was conducted to develop the standard breakfast menu for those weak groups having insufficient breakfast intake. The following three target groups are classified as: 16 - 19 years old high school male student, 20 - 29 years old female who have job or college students, 20 - 29 years old male or female who have job (double income family). While developing menus for each target groups, we applied several basic guidelines for meal planning as follows: Nutrient intake level was set to 1/3 of RDA, while the energy level to 1/4 of RDAs. Most frequent meal pattern of Koreans was adapted; Suitabilities of appropriate serving size and cost for middle-income families were considered; Domestic foods and ingredients were used. We developed 24 menus summed by 2 menus for each season and three target groups. When evaluating the menus, most of the breakfast menus were sufficient of nutrients as a meal for the subjects. Three food groups such as grain/starch group, meat/fish/egg/bean group, vegetable/fruit group were included in all menus. Even though milk/dairy products group was not excluded for some menus, other calcium substitutes like anchovies were used. Oil/nut/sugar group was used to a minimum. The average number of foods for each menu was 12.8, which ranged from 10 to 17 depending on the menus. The average weight of the menus including soup was 822 g, 633 g and 730 g for each target group, respectively. The average price of the menu ranged from 2,000 to 3,500 won per person. The above results could be applied at home as well as foodservice institutes and furthermore could offer information for developing breakfast-substituting food products.

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[English]
Effect of Various Instruction Media on Students' Satisfaction of Food Purchasing Class: Ji Young Yoon, Wan Soo Hong; Korean J Community Nutr 2004;9(3):326-332. Published online June 30, 2004

Abstract PDF: The research objective was to identify the effect of various instruction media on improving students' foodservice management competencies and for increasing class satisfaction. The research involved a comparison of two student groups. One group consisted of students who attended a lecture-based food purchasing class (Group A). The other group was students who attended the same class, and who also used various media as well as receiving the lecture Group B). The results were as follows: 1) After a 16 week program, Group B perceived their procurement management competencies to be higher than those of Group A, especially in setting up purchasing goals, marketing research, and using computer systems for procurement; 2) In terms of class satisfaction, it was also observed that Group B was more satisfied with food purchasing class than was Group A. Group B gave high scores, especially in effective utilization media, increasing motivation, and understanding; 3) Group B perceived that various instruction media was helpful for developing their procurement management competencies. Respondents evaluated the usefulness of media in the following order: using Power Point, watching videos, visiting web-sites for food purchasing class, and surfing the World Wide Web. The results of the research show that using various instruction media for food purchasing classes would improve students' foodservice management competencies. Therefore, instructors who teach foodservice management related courses should consider developing teaching strategies that apply various instruction media for students to enhance their foodservice management competencies and to increase class satisfaction.

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