• Nutrition Research and Practice
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• 제9권6호
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• pp.650-657
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• 2015

BACKGROUND/OBJECTIVES: The aim of this study was to estimate average total fat and fatty acid intakes as well as identify major food sources using data from the Korea National Health and Nutrition Examination Survey (KNHANES) VI-1 (2013). SUBJECTS/METHODS: Total fat and fatty acid intakes were estimated using 24-hour dietary recall data on 7,048 participants aged ${\geq}3years$ from the KNHANES VI-1 (2013). Data included total fat, saturated fatty acid (SFA), monounsaturated fatty acid (MUFA), polyunsaturated fatty acid (PUFA), n-3 fatty acid (n-3 FA), and n-6 fatty acid (n-6 FA) levels. Population means and standard errors of the mean were weighted in order to produce national estimates and separated based on sex, age, income, as well as residential region. Major food sources of fat, SFA, MUFA, PUFA, n-3 FA, and n-6 FA were identified based on mean consumption amounts of fat and fatty acids in each food. RESULTS: The mean intake of total fat was 48.0 g while mean intakes of SFA, MUFA, PUFA, n-3 FA, and n-6 FA were 14.4 g, 15.3 g, 11.6 g, 1.6 g, and 10.1 g, respectively. Intakes of MUFA and SFA were each higher than that of PUFA in all age groups. Pork was the major source of total fat, SFA, and MUFA, and soybean oil was the major source of PUFA. Milk and pork were major sources of SFA in subjects aged 3-11 years and ${\geq}12years$, respectively. Perilla seed oil and soybean oil were main sources of n-3 FA in subjects aged ${\geq}50years$ and aged < 50 years, respectively. CONCLUSIONS: Estimation of mean fatty acid intakes of this study using nationally represented samples of the Korean population could be useful for developing and evaluating national nutritional policies.

• Nutrition Research and Practice
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• 제8권3호
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• pp.336-341
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• 2014

BACKGROUND/OBJECTIVE: It is expected that dairy products such as cheeses, which are the main source of cholesterol and saturated fat, may lead to the development or increase the risk of cardiovascular and metabolic diseases; however, the results of different studies are inconsistent. This study was conducted to assess the association between cheese consumption and cardiovascular risk factors in an Iranian adult population. SUBJECTS/METHODS: Information from the Isfahan Healthy Heart Program (IHHP) was used for this cross-sectional study with a total of 1,752 participants (782 men and 970 women). Weight, height, waist and hip circumference measurement, as well as fasting blood samples were gathered and biochemical assessments were done. To evaluate the dietary intakes of participants a validated food frequency questionnaire, consists of 49 items, was completed by expert technicians. Consumption of cheese was classified as less than 7 times per week and 7-14 times per week. RESULTS: Higher consumption of cheese was associated with higher C-Reactive Protein (CRP), apolipoprotein A and high density lipoprotein cholesterol (HDL-C) level but not with fasting blood sugar (FBS), total cholesterol, low density lipoprotein cholesterol (LDL-C), triglyceride (TG) and apolipoprotein B. Higher consumption of cheese was positively associated with consumption of liquid and solid oil, grain, pulses, fruit, vegetable, meat and dairy, and negatively associated with Global Dietary Index. After control for other potential confounders the association between cheese intake and metabolic syndrome (OR: 0.81; 96%CI: 0.71-0.94), low HDL-C level (OR: 0.87; 96%CI: 0.79-0.96) and dyslipidemia (OR: 0.88; 96%CI: 0.79-0.98) became negatively significant. CONCLUSION: This study found an inverse association between the frequency of cheese intake and cardiovascular risk factors; however, further prospective studies are required to confirm the present results and to illustrate its mechanisms.

• Nutrition Research and Practice
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• 제12권4호
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• pp.336-341
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• 2018

BACKGROUND/OBJECTIVES: Dietary Reference Intakes (DRI) for energy are derived from total energy expenditure (TEE) measured using the doubly labelled water (DLW) method. The objective of this study was to assess the validity of DRI for predicting the energy requirements of elementary school-age children. SUBJECTS/METHODS: The present study involved 25 elementary school-age children aged between 9 and 11 years. TEE was assessed by the DLW method, and the results were compared with the TEE predicted by the DRI equations in order to evaluate accuracy. RESULTS: The subjects' TEE measured by the DLW method was $1,925.2{\pm}380.9kcal/day$ in boys and $1,930.0{\pm}279.4kcal/day$ in girls, whereas resting energy expenditure was $1,220.2{\pm}176.9kcal/day$ in boys and $1,245.9{\pm}171.3kcal/day$ for girls. The physical activity level was $1.58{\pm}0.20$ in boys and $1.55{\pm}0.13$ in girls. The mean bias between the predicted and measured TEE was 12.6% in boys and -1.6% in girls, and the percentage of accurate predictions was 28.6% and 63.6%, respectively. In boys, the equation resulted in underprediction of TEE among the subjects having low TEE values, whereas there was overprediction among subjects having high TEE values as shown by the Bland-Altman plot. On the contrary, this proportional bias was not observed in girls. CONCLUSIONS: The findings of this study suggest that the DRI equation for energy could result in the overestimation of energy requirements in elementary school-age boys. In the case of girls, the equations could be accurate at the group level. However, the DRI appears to be invalid for individual girls, as more than one third of girls had their TEE inaccurately predicted. We recommend more studies for confirmation of these results.

• Nutrition Research and Practice
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• 제14권3호
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• pp.230-241
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• 2020

BACKGROUND/OBJECTIVES: Inadequate nutrition in infants and young children affects physical growth and neurocognitive development. Therefore, early nutritional intervention is important to promote catch-up growth in young children with faltering growth. The aim of this study was to evaluate the effect of nutritional supplementation with a pediatric concentrated and balanced nutritional supplement formula on promoting growth and improving nutritional status in children with nonorganic faltering growth. SUBJECTS/METHODS: Children aged 12-36 months whose body weight-for-age was < 5^th percentile on the Korean Growth Charts were enrolled. Children born premature or having organic diseases were excluded. Children were instructed to consume 400 mL of formula per day in addition to their regular diet for 6 months. Pediatricians and dietitians educated the parents and examined the subjects every 2 months. Anthropometric parameters were measured at baseline and at 2, 4, and 6 months, and laboratory tests were done at baseline and 6 months. The good consumption group included children who consumed ≥ 60% of the recommended dose of formula. RESULTS: Total 82 children completed the 6-month intervention. At baseline, there were no significant differences in all variables between the good consumption and poor consumption groups. Weight and weight z-scores were significantly improved in the good consumption group compared to the poor consumption group at the end of the intervention (P = 0.009, respectively). The good consumption group showed a significant trend for gaining weight (P < 0.05) and weight z-score (P < 0.05) compared to the poor consumption group during 6 months of formula intake. The concentration of blood urea nitrogen was significantly increased in the good consumption group (P = 0.001). CONCLUSIONS: Nutritional supplementation with a concentrated and balanced pediatric nutritional formula along with dietary education might be an effective approach to promote catch-up growth in children with nonorganic faltering growth.

• 동아시아식생활학회지
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• 제17권5호
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• pp.626-633
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• 2007

This study was conducted to determine the eating habits of obese elementary school students residing in Iksan city, in June 2006 using 1167 participants(obese: 233, normal weight: 934). The results are summarized as follows. The average age was 12 years-old in both the obese and normal weight groups. The average BMI, ideal body weight and obesity index in the obese and normal weight groups were $24.8kg/m^2$, 39.8 kg, and 32.5% and $18.2kg/m^2$, 37.7 kg and -1.4%, respectively. Regarding the number of subject who acknowledged their physical build, the obese group was highest(88.9%) in stating obese or extremely obese, while the normal group was highest(71.5%) in stating they were normal weight. For the frequency of eating breakfast, the obese group the results were: "eating it everyday"(69.1%) and $"3{\sim}4\;times/week"$ (13.7%), while in the normal weight group, the highest response was "eating it everyday"(75%) and the lowest response was "never eat it"(4.1%). In terms of having breakfast with someone, there were slight differences for eating alone between the obese group(17.4%) and normal group(12.4%) and also between the obese group(19.6%) and normal group (39.6%) for eating with parents. There were considerable gaps in the association of eating habits with weight such as having irregular meals in the obese group(52.4%) and having regular meals in the normal group(61.1%). The frequency of having snacks was different by the rate of obesity, where 65.9% of the obese group, and 57.8% of the normal group had snacks more than once. There were significant differences in the practice of controlling intake with the obese group at 77.3% and the normal group at 36.3%. There were high numbers regarding eating more than average in stressful times for both the obese group(10.3%) and normal group(7.7%). The results of this study show the prevalence of obesity in Iksan, and proper nutrition education is currently needed. Moreover, the greater the level of obesity, the higher the frequency of skipping breakfast, eating alone, and eating irregular meals, and the more experience in attempting to control weight. To resolve the problems triggered by inappropriate food habits, proper food and eating methods to control weight should be included in nutrition education programs for elementary students.

• Journal of Nutrition and Health
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• 제40권sup권
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• pp.29-38
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• 2007

The purpose of this study was to establish an association between the percent of energy from total sugar and disease prevalence of obesity, hypertension, dyslipidemia, insulin resistance, and metabolic syndrome with the context of the current population dietary practice in Korea. The Korean National Health and Nutrition Survey, 2001 and 2002 dataset were used as the source of data for this research. Usual nutritional intakes for over 20 years old people were calculated from the two non-consecutive dietary intake data from KNHANES 2001 and 2002 dataset. SAS and SUDAAN were used for statistical analyses. Sample weighted means, standard errors, and population percentages were calculated, and multiple logistic regression model with adjustment for covariates were used to determine the odds ratios(ORs) and 95% confidence intervals. Subjects were categorized as 3 ways and compared the LS means and ORs for heath factors. First, subjects excluding pregnant women, were categorized according to percent of energy from the usual total sugar intakes as ${\leq}10%$, 11-15%, 16-20%, 21-25%, >25%. Risk of LDL cholesterol showed a tendency to increase in the '>25%' group compared to the '<10%' group. The risks of the other health effects did not show any significant differences. Second, the subjects were categorized considering both Acceptable Macronutrient Distribution Range(AMDR) from carbohydrate and %Energy from total sugar as 'CHO<55% & Total sugar ${\leq}10%$', 'CHO 55-70% & Total sugar 11-25%', and '$CHO{\geq}70%$ & Total sugar ${\geq}25%$'. The risk of obesity tended to increase in the '$CHO{\geq}70%$ & Total sugar ${\geq}25%$' group compared to the 'CHO<55% & Total sugar ${\leq}10%$'. Third, the subjects were categorized as 'CHO<55% & Total sugar ${\leq}10%$', 'CHO 55-70% & Total sugar 11-20%', and '$CHO{\geq}70%$ & Total sugar ${\geq}20%$'. The risk of obesity also tended to increase in the '$CHO{\geq}70%$ & Total sugar ${\geq}20%$' group compared to the 'CHO<55% & Total sugar ${\geq}20%$' group. In conclusion, risk of LDL cholesterol showed a tendency to increase in the over 25% total sugar intake group, and the risk of obesity tended to increase in the 20-25% total sugar intake and high carbohydrate intake group. The risks of hypertension, hyperlipidemia, insulin resistance, and metabolic syndrome were not associated with total sugar intakes. More research to elucidate the association for Korean between the intakes of total sugar, added sugar, glucose, fructose, and sweeteners and diseases prevalences shoud be excuted in the future.

• Nutrition Research and Practice
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• 제8권4호
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• pp.453-462
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• 2014

BACKGROUND/OBJECTIVES: The inverse relationships of combined fruits and vegetables intake with blood pressure have been reported. However, whether there are such relationships with salty vegetables has rarely been investigated in epidemiologic studies. We evaluated the relation of combined and separate intake of fruits, vegetable intakes, and salty vegetables, as well as sodium and potassium, with blood pressure among the middle-aged and elderly populations. SUBJECTS/METHODS: The present cross-sectional analysis of a prospective cohort baseline survey was performed with 6,283 subjects (2,443 men and 3,840 women) and free of hypertension, diabetes, cardiovascular diseases, and cancer. Dietary data were collected by trained interviewers using food frequency questionnaire. RESULTS: The significantly inverse linear trend of diastolic blood pressure (DBP) was found in fruits and non-pickled vegetables (81.2 mmHg in the lowest quintile vs 79.0 mmHg in the highest quintile, P for trend = 0.0040) and fruits only (80.9 mmHg in the lowest quintile vs 79.4 mmHg in the highest quintile, P for trend = 0.0430) among men. In contrast, sodium and sodium to potassium ratio were positively related with blood pressure among men (DBP, 78.8 mmHg in the lowest quintile vs 80.6 mmHg in the highest quintile, P for trend = 0.0079 for sodium; DBP, 79.0 mmHg in the lowest quintile vs 80.7 mmHg in the highest quintile, P for trend = 0.0199 and SBP, 123.8 mmHg in the lowest quintile vs 125.9 mmHg in the highest quintile for sodium/potassium). Kimchies consumption was positively related to DBP for men (78.2 mmHg in the lowest quintile vs 80.9 mmHg in the highest quintile for DBP, P for trend = 0.0003). Among women, these relations were not found. CONCLUSION: Fruits and/or non-pickled vegetables may be inversely, but sodium, sodium to potassium, and Kimchies may be positively related to blood pressure among men.

• Nutrition Research and Practice
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• 제12권3호
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• pp.258-264
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• 2018

BACKGROUND/OBJECTIVES: Diet quality scores or indices, based on dietary guidelines, are used to summarize dietary intake into a single numeric variable. The aim of this study was to examine the association between the modified diet quality index for Koreans (DQI-K) and mortality among Health Examinees-Gem (HEXA-G) study participants. SUBJECTS/METHODS: The DQI-K was modified from the original diet quality index. A total of 134,547 participants (45,207 men and 89,340 women) from the HEXA-G study (2004 and 2013) were included. The DQI-K is based on eight components: 1) daily protein intake, 2) percent of energy from fat, 3) percent of energy from saturated fat, 4) daily cholesterol intake, 5) daily whole-grain intake, 6) daily fruit intake, 7) daily vegetable intake, and 8) daily sodium intake. The association between all-cause mortality and the DQI-K was examined using Cox proportional hazard regression models. Hazard ratios and confidence intervals were estimated after adjusting for age, gender, income, smoking status, alcohol drinking, body mass index, and total energy intake. RESULTS: The total DQI-K score was calculated by summing the scores of the eight components (range 0-9). In the multivariable adjusted models, with good diet quality (score 0-4) as a reference, poor diet quality (score 5-9) was associated with an increased risk of all-cause mortality (hazard ratios = 1.23, 95% confidence intervals = 1.06-1.43). Moreover, a one-unit increase in DQI-K score resulted in a 6% higher mortality risk. CONCLUSIONS: A poor diet quality DQI-K score was associated with an increased risk of mortality. The DQI-K in the present study may be used to assess the diet quality of Korean adults.

• 한국산학기술학회논문지
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• 제14권1호
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• pp.265-274
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• 2013

본 연구의 목적은 아동 청소년의 비만실태에 따른 식생활습관의 관련 요인을 알아보고자 하였다. 본 연구는 보건복지가족부에서 시행한 용역연구과제중 '2009 한국 아동 청소년 온라인게임 및 가족여가활동실태조사' 연구결과 데이터를 활용하였다. 연구활용 대상자는 초등학생 2,778명, 중학생 3,385명, 고등학생 3,299명 총 9,462명을 대상으로 하였다. 연구대상자의 BMI에 따라 그룹화 하였다. 저녁식사 후 간식 섭취는 18.5>BMI 그룹은 그렇지 않다고 38.8%, 18.5${\leq}$BMI<23.0 그룹은 그렇지 않다고 41.1%, 23.5${\leq}$BMI<25.0 그룹은 그렇지 않다고 40.1%, $25{\leq}BMI$ 그룹은 그렇지 않다고 37.4%로 가장 높은 응답을 하였다(p=0.001). 매일 규칙적인 운동을 하는지 조사한 결과 BMI 지수가 높은 그룹 일수록 운동을 하지 않는 것으로 나타났다. 체육시간 등과 같은 시간에 적극성을 조사한 결과 BMI 지수가 낮은 그룹 일수록 적극적으로 운동하는 것으로 나타났다. 주위사람과의 식사 속도 역시 BMI 지수가 높은 그룹일수록 식사속도가 빠른 것으로 나타났다. 아동 청소년 시기에 올바른 교육을 실천할 수 있도록 해 준다면 보다 건강하고 윤택한 삶을 영유할 수 있을 것이다. 아동 청소년기의 올바른 인식과 생활습관을 갖추도록 해주어 보다 건강하고 행복한 삶을 살도록 해 주어야 할 것이다. 이를 위해서는 아동 청소년은 물론 부모를 대상으로 교육할 필요성이 있다.

• 한국가정과교육학회지
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• 제34권2호
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• pp.21-40
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• 2022

본 연구는 특성화고등학교 학생의 식습관 및 영양지식을 조사하여 특성화고등학교 학생의 건강한 식습관 형성을 위한 긍정적이고 실천적인 식생활교육의 기초자료를 제공하고자 하였다. 이를 위해 경상남도에 소재한 한 특성화고등학교의 학생들을 대상으로 편의표본추출법을 사용하여 설문조사를 실시하여 270부를 SPSS(Statistics Package for the Social Science, Ver. 25.0 for Window) 프로그램을 이용하여 분석하였다. 본 연구의 주요 결과를 요약하면 다음과 같다. 첫째, 조사 대상자의 생활환경은 '부모'와 동거하는 학생이 57.40%로 가장 많았고, 월 소득 수준은 '하'가 55.56%로 가장 많았다. 둘째, 조사 대상자의 식습관은 1일 '2식'을 섭취하는 학생이 64.81%로 가장 높게 나타났고, 1일 '1식'의 경우 식사 장소는 '학교 급식소'가 65.96%로 가장 높게 나타났다. 셋째, 영양지식 수준을 분류한 결과 '상'이 37.78%, '중'이 37.41%, '하'가 24.81%를 나타냈다. 영양교육에 관한 경험은 최근 12개월 동안 영양교육을 받아 본 경험이 '없다'가 64.44%로 높게 나타났으며, '영양교육을 받은 경험이 있는 학생'은 35.56%로 교육 경로는 '학교(교사)'가 72.92%로 가장 높게 나타났다. 이상의 결과로 특성화고등학교 학생에게 발생할 수 있는 청소년 식습관 문제를 예방하기 위해 가정, 학교, 지역사회가 유기적인 협조체계를 이루어야 하고, 더 나아가 정부의 아낌없는 지원이 필요하다. 또한 학생들이 알고 있는 영양지식이 올바른 식행동으로 연결될 수 있도록 실천 중심의 식생활교육을 위해 노력해야 할 것이다.