• Journal of Nutrition and Health
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• 제52권4호
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• pp.342-353
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• 2019

본 연구는 선형계획법을 이용하여 나트륨의 제약조건 변화에 따른 최적 식품섭취패턴 변화를 살펴보고 보다 실현성이 높은 나트륨의 목표섭취량을 구하고, 이를 나트륨의 제약조건으로 최적 식품섭취패턴을 설계하는 것을 목적으로 수행되었다. 주요 결과는 다음과 같다. 나트륨의 제약조건 (2,000 mg)을 100 mg 단위로 증가시키면서 선형 계획법을 이용하여 조미료의 최적섭취량을 성 및 연령별 여덟 집단에 대해 산출하였다. 조미료의 최적섭취량이 조미료의 실제섭취량의 $25^{th}$ 백분위수에 가장 가까운 경우의 나트륨 양은 남성 19 ~ 29세, 30 ~ 49세, 50 ~ 64세, 65세 이상에서 각각 3,600 mg, 4,500 mg, 4,200 mg, 3,400 mg, 여성 19 ~ 29세, 30 ~ 49세, 50 ~ 64세, 65세 이상에서 각각 2,800 mg, 3,100 mg, 3,100 mg, 2,500 mg으로 산출되었다. 이를 나트륨의 제약조건으로 하였을 때 성 및 연령별 여덟 집단의 최적 식품섭취패턴이 선형계획법을 이용하여 수학적으로 설계되었다. 결론적으로 나트륨의 제약조건을 2,000 mg으로부터 500 ~ 2,500 mg 정도 성 및 연령별로 상향 조정하였을 때 실현성이 높은 최적 식품섭취패턴이 설계되었다. 이 최적 식품섭취패턴에서는 여덟 집단 모두 공통적으로 채소류, 여성에서 우유 유제품류, 50 ~ 64세를 제외한 여성에서 과일류의 섭취량을 현재보다 더 늘릴 필요가 있는 것으로 나타났다.

• Nutrition Research and Practice
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• 제9권2호
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• pp.192-198
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• 2015

BACKGROUND/OBJECTIVES: Vitamin E is a fat-soluble vitamin and functions primarily as a lipid antioxidant. Inadequate vitamin E status may increase risk of several chronic diseases. Thus, the objectives of this study were to estimate intake and plasma concentration of each tocopherol and to evaluate vitamin E status of Korean adults. SUBJECTS/METHODS: Three consecutive 24-h food recalls and fasting blood samples were collected from healthy 20- to 59-y-old adults (33 males and 73 females) living in the Seoul metropolitan area, South Korea. ${\alpha}$-, ${\beta}$-, ${\delta}$-, and ${\gamma}$-tocopherol intakes and plasma concentrations of tocopherols (${\alpha}$-, ${\delta}$-, and ${\gamma}$- tocopherol) were analyzed by gender. RESULTS: Dietary vitamin E and total vitamin E intake (dietary plus supplemental vitamin E) was $17.68{\pm}14.34$ and $19.55{\pm}15.78mg$ ${\alpha}$-tocopherol equivalents, respectively. The mean daily ${\alpha}$-tocopherol, and ${\gamma}$-tocopherol intakes were $3.07{\pm}2.27mg$ and $5.98{\pm}3.74mg$, respectively. Intakes of total vitamin E and each tocopherol of males were significantly higher than those of females (P < 0.05). Plasma ${\alpha}$-tocopherol concentration was $15.45{\pm}10.16$ of males and $15.00{\pm}4.54{\mu}mol/L$ of females, respectively. There were no significant differences in plasma tocopherol concentrations by gender ($P{\geq}0.05$). Plasma ${\alpha}$-tocopherol was negatively correlated with ${\gamma}$-tocopherol intake (P < 0.05). Twenty-three percent of the subjects had plasma ${\alpha}$-tocopherol concentrations < $12{\mu}mol/L$ indicating a biochemical deficiency of vitamin E. Approximately 8% and 9% of these participants had plasma ${\alpha}$-tocopherol:total lipid ratio less than $1.59{\mu}mol/mmol$ and plasma ${\alpha}$-tocopherol:total cholesterol ratio less than $2.22{\mu}mol/mmol$, respectively, which are also indicative of vitamin E deficiency. CONCLUSIONS: Vitamin E intakes of Korean adults were generally adequate with the Korean Dietary Reference Intakes for vitamin E. However, ${\alpha}$-tocopherol intake was lower than that reported in other countries, and 23% of the subjects in the current study were vitamin E deficient based on plasma ${\alpha}$-tocopherol concentrations.

• Journal of Nutrition and Health
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• 제40권1호
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• pp.89-96
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• 2007

This study was performed to weigh the average meal portion sizes served for preschoolers by kindergarten teacher. The subjects were 53 teachers from 8 kindergartens, which are random sampled by meal service number. Using the weighing method assessed the meal portion sizes of food items at lunch. The data was complied by performing $\chi^2-test$ using SPSS WIN 11.0. The result was as followed: 98.0% of teacher agreed with the meal service because of 'better food habit and table etiquette'(68.0%), 'health promotion with balanced diet'(22.0%), 'owing to extending school time'(6.0%) and 'demand of parents'(2.0%). Preschooler eat lunch at class (84.9%) and meal serving size was decided by teacher (79.2%). Teachers thought that they know very well about portion size 3.8%, 96.2% of teacher thought that they don't know much about portion size. Portion size were not significantly different by food tray types but there was much different (almost 100%) compared with minimum and maximum within dishes. Most average portion size was not met dietary reference intake except cooked rice, soups and fish cutlet. Working experience effected on portion size. More served, more working experienced of teacher. For example Bulgogi was served 26.8 g by teacher who has over 6 years working experience compared with 2-6 years (20.4 g) and less than 2 years (17.1 g) (p < 0.01). Spinach portion size was significantly different by teacher's working experience (p < 0.01). Portion size were not significantly different by preschooler's age. The reference of dietary for preschooler was different by age, but teachers served meal by their experience. According to the results of this study, it is necessary to educate meal portion size for kindergarten teacher who take charge in meal serving. To provide guidance to teacher about reasonable portion sizes for preschoolers, teacher need to take nutrition education about meal service and child nutrition in college. This study would be useful to those who plan meals for preschoolers and to researchers studying dietary intakes of preschooler.

• 대한영양사협회학술지
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• 제23권3호
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• pp.263-273
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• 2017

Numerous studies have investigated quantifying dietary intake according to the weight status of children and adolescents. However, studies on differences in quality among diets remain scarce. This study compared diet quality by weight status and examined correlations between quality of diet and obesity in children and adolescents. Two hundred fourteen children and adolescents aged between 9 and 18 years participated in this study (Normal weight n=104, Obesity n=110). The data related to food intake were investigated by dietary records, Diet Quality Index-International (DQI-I), and Nutrition Quotient (NQ) and then compared with Dietary Reference Intakes for Korean (KDRIs). In DQI-I, moderation factor (control of unhealthy foods) score was 21.7 in the normal weight group and 19.5 in the obesity group. The normal weight group showed a higher score for moderation factor than the obesity group (P<0.001). Compared with KDRIs, vitamin $B_6$, folate, vitamin C, vitamin E, calcium, potassium, and zinc intakes were insufficient in both groups. Multiple logistic regression analysis revealed that DQI-I moderation was negatively associated with obesity (OR=0.77, 95% CI 0.69-0.87) after adjustment for age, gender, income, and total energy intake. Our results suggest that children and adolescents require nutritional education to understand the importance of vitamin and mineral consumption. Especially, education for children and adolescents with obesity needs to emphasize moderation of nutrient intake that can cause diseases with hyper-ingestion such as sodium and high calorie-low nutrition foods.

• Journal of Nutrition and Health
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• 제50권5호
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• pp.483-493
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• 2017

본 연구에서는 한국 성인의 비타민 E 섭취량과 기여식품군의 현황 및 추이를 확인하기 위하여 제1~6기 국민건강영양조사에 참여한 19세 이상 성인 69,665명의 24시간 회상 자료를 한국인 상용식품의 비타민 E 함량 데이터베이스와 연계하여 ${\alpha}-$, ${\beta}-$, ${\gamma}-$, ${\delta}-$토코페롤 및 비타민 E 섭취량을 추정하였다. 그 결과 비타민 E의 섭취량은 1998년도 이후 꾸준히 증가하였으며, 2013~2015년의 비타민 E 섭취량은 남성 $7.5mg\;{\alpha}-TE/d$, 여성 $6.4mg\;{\alpha}-TE/d$였음을 알 수 있었다. 각 식품군별 비타민 E 섭취 기여율을 산출하였을 때에는 채소류, 곡류, 난류 순으로 기여율이 높았고, 시간에 따른 추이를 보았을 때에는 채소류의 기여율은 감소하였고 난류의 기여율은 증가하였다. 2015 한국인 영양소 섭취기준을 이용해 본 연구에서 추정한 한국 성인의 비타민 E 섭취량을 평가한 결과, 비타민 E의 평균 섭취량이 충분섭취량에 미치지 못하는 것으로 나타났다. 이러한 섭취 부족현상은 연령이 높고 교육수준 및 소득수준이 낮을수록 뚜렷하였다. 따라서 이러한 영양취약계층을 대상으로 비타민 E의 기능 및 급원식품을 교육할 필요성이 있다고 사료된다. 본 연구에서 체계적인 방법으로 추정한 한국 성인의 비타민 E 섭취량은 한국인 영양소 섭취기준의 개정을 위한 근거자료로 사용될 수 있을 것이나, 한국인 상용식품 내 다양한 형태의 비타민 E 함량을 분석하는 후속 연구가 수행되면, 더욱 정확한 비타민 E 섭취량 추정값을 얻을 수 있을 것이다.

• 대한지역사회영양학회지
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• 제24권3호
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• pp.223-231
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• 2019

Objectives: This study evaluated dietary intakes of total fat and fatty acids among the Korean adult population. Methods: This cross-sectional study used the 2016-2017 Korea National Health and Nutrition Examination Survey data. A total of 10,772 subjects aged ${\geq}19y$ for which dietary data were available were selected. Data pertaining to energy and nutrient intakes were obtained by a 24-h recall method. Total fat and fatty acids intakes were evaluated based on the Acceptable Macronutrient Distribution Ranges (AMDR) of 2015 Dietary Reference Intakes for Koreans by sex and age groups. All statistical analyses accounted for the complex sampling design effect and sampling weights. Results: The mean intakes of energy and total fat were 1,952 kcal (95% CI: 1928-1977) and 46.1 g (45.2-47.1), respectively, and about 21% of the energy was obtained from fat in this study population (21.7% in men and 20.2% in women). The mean percentages of energy from saturated, monounsaturated, and polyunsaturated fatty acids were 6.4%, 6.7%, and 5.2%, respectively. About 18% of adults exceeded the AMDR for fat (30% of energy), whereas 37.6% exceeded the AMDR for saturated fatty acids (7% of energy). The proportions of subjects who consumed more than the AMDR for fat and saturated fatty acids decreased across age groups in both sexes. Among young adults (19-29 y), about 63% of the subjects obtained ${\geq}7%$ of their energy from saturated fatty acids. About 61% of older adults obtained less than 15% of their energy from total fat. Conclusions: Increased intake of fat energy was prominent in saturated fatty acids. Our findings suggest current information on total fat and fatty acids intakes in Korean adults and can be used to provide dietary guidelines for the improvement of public health.

• 대한영양사협회학술지
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• 제6권2호
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• pp.125-135
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• 2000

Hypertension is a well-known degenerative disease whose prevalence rate increases with age. Management of high blood pressure is a critical concern in preventive strategies to reduce the morbidity and mortality for cardiovascular disease. The purpose of this study was to examine the dietary characteristics of hypertensive program participants, and to establish strategies based on their nutritional needs. Hypertensive patients were enrolled in the program in a public health center or in a local elderly center, at Suwon, in 1999-2000. Trained dietitians interviewed 62 enrollees(24-hour recall) and related variables. Mean body mass index of the subjects was 25.0kg/m². 30.7% of the subjects had a family history of hypertension. The majority of them ate regularly and partook of all available side dishes. They consumed grains and vegetables regularly, but seldom ate dairy products or food prepared with oil. Male enrollees frequently consumed more processed food and animal fat than did female enrollees(p<0.05). An analysis of the percentage of RDA(Recommended Dietary Allowances of Korea 1995) showed that but for ascorbic acid, enrollees consumed nutrients below the RDA. The food group intake pattern was not diverse, thus only 8.1% of enrollees consumed all food groups in a day. An analysis of eating attitude showed that 64.5% of enrollees always added salt to beef soup. Male enrollees showed low food-related self-efficacy compared to female enrollees, especially with reference to reduction of instant food intake(p<0.01), increase in vegetable intake(p<0.01), reduction of monosodium glutamate(MSG) intake(p<0.01). and not overeating(p<0.05). Their perceived barriers for participating in hypertension nutrition programs included lack of time, program necessity non-recognition, and program comprehension difficulty. These results suggest that nutrition education program necessity non-recognition, and program comprehension difficulty. These results suggest that nutrition education programs for community hypertensive patients should focus on increasing participant consumption of foods, expecially dairy products, and desirable eating attitudes. It also suggests that the program should consider should consider encouraging self-efficacy in changing eating behavior.

• 한국가정과교육학회지
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• 제30권4호
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• pp.83-91
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• 2018

본 연구는 대전시에 위치한 고등학교 1, 2학년 여학생 235명을 대상으로 자기 기입식 기록법을 적용하여 주중 2일과 주말 1일, 총 3일간의 액체수분 섭취실태를 조사하였다. 액체수분 섭취총량은 838.5 ㎖/일(주중 790.5 ㎖/일, 주말 934.5 ㎖/일)로 2015 한국인 영양소 섭취기준에 제시된 충분섭취량 900 ㎖/일에 미치지 못하였다. 액체수분의 종류별 섭취량 분석 결과, 물의 섭취량이 611.6 ㎖/일로 가장 많았고, 탄산음료(65.7 ㎖/일), 우유(41.6 ㎖/일), 과즙음료(32.8 ㎖/일), 과채주스(25.4 ㎖/일)의 순으로 나타났다. 나머지 음료 8종은 섭취량이 15 ㎖/일 미만이었다. BMI 비만도에 따른 액체수분 섭취량 차이 분석에서 물과 액체수분 섭취총량은 BMI 23.0 이상인 학생이 18.5 미만, 18.5 이상 23.0 미만인 학생보다 많았다. 운동 빈도와 고염식 식습관에 따른 섭취량 차이 분석에서 운동 일수 3일/주 이상, 고염식 식습관 점수 7점 이상인 학생은 탄산음료의 섭취량이 많았다. 건강한 사람이라면 수분의 과잉 섭취로 인한 유해 효과가 없기 때문에 충분한 수분 섭취, 특히 건강 음료의 선택과 관련하여 올바른 교육이 필요하다고 할 수 있다.

• Environmental Analysis Health and Toxicology
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• 제30권
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• pp.4.1-4.11
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• 2015

Objectives: This survey was designed to conduct the first nationwide dietary exposure assessment on hazardous substances including the intakes of functional food and herbal medicine. In this paper, we introduced the survey design and the results of the dietary exposure status and internal exposure levels of lead (Pb), cadmium (Cd), and mercury (Hg). Methods: We selected 4867 subjects of all ages throughout Korea. We conducted a food survey, dietary survey, biomonitoring, and health survey. Results: Pb and Cd were the highest (median value) in the seaweed ($94.2{\mu}g/kg$ for Pb; $594{\mu}g/kg$ for Cd), and Hg was the highest in the fish ($46.4{\mu}g/kg$). The dietary exposure level (median value) of Pb was $0.14{\mu}g/kg$ body weight (bw)/d, $0.18{\mu}g/kg$ bw/d for Cd, and $0.07{\mu}g/kg$ bw/d for Hg. Those with a blood Pb level of less than $5.00{\mu}g/dL$ (US Centers for Disease Control and Prevention, reference value for those 1 to 5 years of age) were 99.0% of all the subjects. Those with a blood Cd level with less than $0.30{\mu}g/L$ (German Federal Environmental Agency, reference value for non-smoking children) were 24.5%. For those with a blood Hg level with less than $5.00{\mu}g/L$ (human biomonitoring I, references value for children and adults, German Federal Environmental Agency) was 81.0 % of all the subjects. Conclusions: The main dietary exposure of heavy metals occurs through food consumed in a large quantity and high frequency. The blood Hg level and dietary exposure level of Hg were both higher than those in the European Union.

• Journal of Nutrition and Health
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• 제52권5호
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• pp.422-434
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• 2019

우리나라 국민의 가공식품 섭취 증가로 인해 가공식품으로부터의 영양소 섭취는 개인의 건강을 유지하는 식생활의 중요한 요인으로 작용하게 되었다. 그러므로 본 연구는 가공식품으로부터의 열량 및 영양소의 섭취 기여를 파악하는 것을 목적으로 하였다. 연구결과는 다음과 같다. 나이, 성별, 에너지 섭취량을 보정 한 결과, 가공식품의 섭취량은 남자가 여자보다 유의적으로 많이 섭취하였고, 나이가 증가할수록 적게 섭취하였다. 또한, 소득이 높고, 학력이 높을수록 총 가공식품의 섭취량이 유의적으로 많았다. 가공식품 섭취는 총식품 섭취량의 68.1%로 원재료식품보다 높았고, 곡류, 버섯류, 기타류를 제외한 모든 식품군에서 가공식품 섭취비율이 유의적으로 높았다. 음료 및 주류에서 가공식품 섭취량이 가장 높았다. 가공식품 섭취량이 많은 상위 5개 식품군인 음료 및 주류군, 채소군, 곡류군, 과일군, 유류군에서 다소비 가공식품은 빵, 김치, 사과가공품, 우유, 맥주로 나타났다. 나이, 성별, 에너지 섭취량을 보정 한 결과, 탄수화물을 제외한 조사된 모든 영양소 섭취량 및 영양소 섭취기준 비율은 원재료식품 식품에서보다 가공식품에서 유의적으로 높았다. 총 에너지 대비 탄수화물 섭취 비율은 가공식품에서 낮았고 단백질, 지질로부터의 에너지 섭취비율이 가공식품에서 높았다. 특히 나트륨의 경우, 가공식품에서 섭취가 96.3%로 가공식품으로부터 가장 높게 섭취하는 영양소로 나타났다. 나이, 에너지 섭취량을 보정 한 결과, 가공식품에서 영양소 섭취량은 남성이 여성보다 많았다 (비타민 C, 식이섬유, 철분, 비타민 A 제외). 가공식품에서 비타민 C 섭취량은 여성에서 높았고, 식이섬유, 철분, 비타민 A 섭취량은 성별에 따른 차이가 없었다. 성별, 에너지 섭취량, BMI를 보정 한 결과, 가공식품에서 철, 비타민 A, 비타민 C의 섭취량은 20대에 비하여 30 ~ 64세에서 섭취량이 증가하였고 65세 이상에서는 감소하였다. 가공식품으로부터의 나트륨 섭취량은 30 ~ 49세에 가장 높았고, 50세 이상에서는 섭취량이 감소하였다. 결론적으로 한국 성인의 경우 1일 총 식이 섭취량에서 가공식품 섭취량이 원재료식품보다 많았으며 가공식품으로부터 더 많은 열량과 및 대부분 영양소를 섭취하고 있는 것으로 나타났다. 가공식품의 섭취는 앞으로 더 늘어날 것으로 예상하여 건강한 가공식품의 섭취와 선택에 관한 연구와 영양교육이 필요한 것으로 생각한다.