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Kim M.-H.,Korea National University of Transportation | Min D.,Kangwon National University | Jang E.,Kangwon National University | Yeon J.-Y.,Food Nutrition and Dietary Safety Bureau | And 2 more authors.
Journal of the Korean Society of Food Science and Nutrition | Year: 2015

The purpose of this study was to evaluate salt-related dietary attitudes, behaviors, and nutrition knowledge according to urinary salt signal of university students. Based on urinary salt signal, we classified subjects into an “adequate Na intake (ANI)” group (n=52) (salt ≤6 g) and “excess Na intake (ENI)” group (n=66) (salt >6 g). Subjects were asked about general characteristics, lifestyle, salt-related dietary attitudes, behaviors, and nutritional knowledge using questionnaire. The ENI group had more subjects who were drinkers (P<0.05) compared to the ANI group. The ENI group (33.45) showed a significantly lower score in terms of salt-related dietary attitudes compared to the ANI group (35.50) (P<0.05). There was no significant difference in the total score of salt-related dietary behavior between the groups. The score of nutrition knowledge was significantly higher in the ANI (9.77) group than in the ENI (8.82) group (P<0.05). The correlation analysis indicated that the urinary salt signal had a negative correlation with the salt-related dietary attitude score after adjustments for age, sex, and body mass index (r=-0.2100, P<0.05). These results support the validity of using the urinary salt signal to simplify estimation of sodium intake. © 2015, Korean Society of Food Science and Nutrition. All rights reserved.

Yeon J.-Y.,Food Nutrition and Dietary Safety Bureau | Bae Y.J.,University of Science and Arts of Iran | Kim E.-Y.,Sookmyung Womens University | Lee E.-J.,A-Life Medical
Clinica Chimica Acta | Year: 2015

Background: We investigated the association between flavonoid intake and type 2 diabetes mellitus (T2DM) risk factors including serum fasting glucose, insulin level, and insulin resistance. Methods: A total of 4186 participants who were involved in the 2007-2009 Korean National Health and Nutrition Examination Survey were examined. The participants were divided into 2 groups by fasting plasma glucose (FPG) as follows: normal fasting glucose (NFG; FPG < 100 mg/dl) and impaired fasting glucose (IFG) groups (FPG ≥ 100 mg/dl). Results: In the IFG group, body weight, body mass index, and waist circumference were increased. Fasting insulin level and homeostasis model assessment estimate of insulin resistance as markers of insulin resistance were higher in the IFG group. Intakes of energy and nutrients, including protein, fat, carbohydrate, crude fiber, vitamin C, calcium, phosphorus, and iron, did not differ between the 2 groups. For the male subjects, the energy-adjusted flavanone intake was lower in the IFG group than in the NFG group. Insulin and insulin resistance were inversely correlated with intakes of flavones and flavonols among the male subjects. Conclusion: These findings can provide valuable information for further development of appropriate strategies for diabetes prevention in Korea. © 2014 Elsevier B.V..

Park S.,Hanyang University | Lee J.,Kyonggi University | Kwon K.-I.,Food Nutrition and Dietary Safety Bureau | Kim J.-W.,Food Nutrition and Dietary Safety Bureau | And 4 more authors.
Nutrition Research and Practice | Year: 2014

Background/Objectives: South Korean’s sodium consumption level is more than twice the upper limit level suggested by the WHO. Steep increases in the prevalence of hypertension and cardiovascular disease in Korea necessitate more effective sodium reduction programs. This study was conducted in order to compare sodium intake-related eating behaviors and key psychosocial factors according to age group and gender.Subjects/Methods: Using an online survey, a total of 1,564 adults (20-59 years old) considered to be geographically representative of South Korea were recruited and surveyed. The major outcomes were perceived behaviors, knowledge, intentions, and self-efficacy related to sodium intake.Results: The results show that perceived behavior and level of self-efficacy related to low sodium consumption differed by age and gender. Female participants showed better behavior and intention towards low sodium intake than male counterparts. Young participants in their 20s showed the lowest intention to change their current sodium intake as well as lowest self-efficacy measures.Conclusions: Future sodium reduction interventions should be developed with tailored messages targeting different age and gender groups. Specifically, interventions can be planned and implemented at the college level or for workers in their early career to increase their intention and self-efficacy as a means of preventing future health complications associated with high sodium intake. © 2014 The Korean Nutrition Society and the Korean Society of Community Nutrition.

Lee S.-K.,Food Nutrition and Dietary Safety Bureau | Park H.-K.,Food Nutrition and Dietary Safety Bureau | Choi Y.-J.,Food Nutrition and Dietary Safety Bureau
Asia Pacific Journal of Clinical Nutrition | Year: 2014

The increasing rate of child obesity has developed into a serious concern in contemporary society. In Korea, additional concerns over unsanitary environments of food establishments near schools led to the enforcement in 2009 of the Special Act on the Safety Management of Children's Dietary Life in order to improve food safety and nutrition. Some of the main policies of the Special Act are the prohibition of Energy- dense Low-Nutrient density Foods (hereinafter referred to as EDLNF) at school canteens and in the outstanding businesses, along with restrictions on television advertisement for EDLNF products. Confectioneries, candies, sweetened-ice products, breads, chocolates, processed milk, fermented milk, ice cream, fish-meat sausages, fruit/vegetable beverages, carbonated beverages, mixed beverages, and lactic acid bacteria beverages are classified as applicable food types of EDLNF. To establish the nutritional standards for EDLNF, the intake proportions and the pattern of nutrients in children's preferred foods in Korea were analyzed, based on the 2005 National Health and Nutrition Survey of Korea. The foods containing more than 250 kcal, more than 17 g of sugar or more than 4 g of saturated fat and less than 2 g of protein per serving are considered EDLNF snacks. The Korean government is concentrating its efforts in promoting healthy environments for children in its research and in food policies. Further studies are necessary to investigate the current state of changes in the children's foods industry.

Shim Y.-S.,Korea Food Research Institute | Yoon W.-J.,Korea Food Research Institute | Yoon W.-J.,Korea University | Ha J.,Korea Food Research Institute | And 13 more authors.
Food Science and Biotechnology | Year: 2013

An analytical method for the simultaneous determination of 16 types of structural amino acids in infant formula using an automated amino acid analyzer was validated through tests of precision, accuracy and linearity. The automated analysis of the amino acids was performed on an ion-exchange packed column with a visible detector. The certificated reference material (CRM) 1546 from NIST was used as the test sample to determine the precision and accuracy of the analytical method. The regression analyses revealed good correlations [correlation coefficient (r 2)] that were greater than 0.99. The recovery values of the amino acids were ranged from 87.18 to 118.08%. The limits of detection and limits of quantification were less than 0.059 mg/100 g and less than 0.198 mg/100 g, respectively. The intra- and inter-day precisions were less than 14.62% in the CRM sample. © 2013 The Korean Society of Food Science and Technology and Springer Science+Business Media Dordrecht.

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