• Journal of Nutrition and Health
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• v.27 no.4
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• pp.336-346
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• 1994

balance and to estimate daily energy requirement in 43 Korean female college students maintaining their usual diet and activity level. Energy intake and expenditure were measured in two separate periods about one month apart, each period lasting for 3 days. All the subjects participated in both periods. Energy intake was assessed by two methods ; weighed diet record and duplicate portion analysis of diet minus fecal and urinary excretion. Mean daily energy intake level calculated from diet records was 28.5 kcal/kgB.W(1, 476 kcal/day), and similar to the level of 27.8 kcal/kgB.W(1, 438 kcal/days) obtained from the chemical analysis of duplicate portions. Mean daily energy expenditure, calculated from activity records of each subject, was 34.6 kcal/kgB.W, or 1.39 times BMR, which corresponds to light activity level. Mean daily energy balance of subjects was -5.9 kcal/kgB.W. Mean daily requirement of energy, calculated from the activity records of the subjects, was 34.6 kcal/kgB.W, similar to the level of the Korean RDA for light activity level. The results of this study indicate that 1) the activity level of the study subjects corresponds to the sedentary level ; 2) present Korean RDA for energy for light activity is adequate for the subjects ; and 3) the subjects should increase their energy intake since they are largely in negative energy balance.

• Nutrition Research and Practice
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• v.5 no.6
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• pp.548-552
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• 2011

The purpose of this study was to estimate the daily manganese (Mn) intake of Korean children. This study was done using a three-day dietary intake survey of 257 Korean children (boys 123; girls 134). The Mn intake values were calculated based on a database that provides the Mn content of the frequently consumed Korean foods, alongside the food composition table provided by the Korean National Rural Living Science Institute. The average age, height, weight and body mass index of our subjects were 11.9 years, 155.4 cm, 48.9 kg and 20.2 kg/$m^2$ in boys and 11.9 years, 154.1 cm, 43.5 kg and 18.3 kg/$m^2$ in girls. The average daily energy intakes were 2,249.2 kcal in boys and 2,044.5 kcal in girls. Boys consumed significantly more Mn than girls, based on intake estimates of $4,585.3{\mu}g$ (117.6% of adequate intake) and $4,029.3{\mu}g$ (117.1% of adequate intake), respectively (P < 0.001). Boys had a Mn intake of $2,041.1{\mu}g$ per 1,000 kcal of energy consumption, whereas for girls this was at $1,983.9{\mu}g$ per 1,000 kcal. Neither group exceeded the tolerable upper intake level for Mn. The major food groups which contributed to Mn intake in our subjects were cereals (50.8%), vegetables (21.0%), seasonings (8.9%), and pulses (7.7%). Notably, boys derived a higher Mn intake through cereals and vegetable than did girls (P < 0.001, P < 0.05). The key food sources of Mn, in descending order, were rice, soybean curd, kimchi, black rice and cereals. We propose that the results of our study may be used as a basis for follow-up studies that examine the Mn intake of children.

• Nutrition Research and Practice
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• v.1 no.2
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• pp.131-142
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• 2007

The purpose of this study was to investigate differences in the body composition, dietary habits, daily intake of nutrients and clinical blood indices in female college students by body mass index of normal weight, overweight and obese. The subjects of this research were 141 respondents of a survey carried out on students, and subjects were given 60 minutes to answer questionnaires, by recording their own answers. The average heights and weights of subjects by BMI were 162.17 cm, 52.73 kg in normal weight group, 162.35 cm, 62.22 kg in overweight group and 161.72 cm, 69.82 kg in obesity group, respectively. As for the survey daily of meals, starving breakfast and kind of snacks of subjects were significantly different among the groups by BMI. In animal protein food intakes, meat intake was the highest 'every day' food consumed by subjects, and there was a significant difference in distribution of BMI among subjects. Fruits, and greenish and yellow vegetables intakes were the highest 'every day' foods indicated by the normal weight group. Consumption of carbonated beverages and juices showed a significant difference among groups by BMI. The average of total-cholesterol was the overweight group was the higher value. There was a significant difference in diastolic blood pressure and systolic blood pressure among the groups by BMI. Average daily calories intake levels were insufficient and the intake ratio of carbohydrates, protein, and fat was the normal weight group 68 : 17 : 15, the overweight group 64 : 18 : 18 and the obese group 73 : 14 : 13. Results of the daily vitamin intake analyses displayed riboflavin, niacin, vitamin C, and folic acid levels lower than the RI levels. Fe intake was the normal weight group 81%, overweight group 76%, obese group 59% of the RI level. Therefore, it is necessary for college students to establish regular meals, good quality snacks and consuming more vitamin and mineral nutritions for optimal health conditions.

• Korean Journal of Community Nutrition
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• v.14 no.1
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• pp.1-11
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• 2009

The aims of this study were to assess the quality of breakfast intake and to examine the relation of breakfast intake to the quality of daily diet in Korean school-aged children. The one day 24-hour recall data from the 2001 National Health and Nutrition Survey were analyzed. The sample of this study consisted of 1,600 children aged 7 to 18 years attending elementary, middle, or high schools. By calorie level of breakfast intake, the children were grouped into Breakfast Skippers (0 kcal; n = 268, 17%), Low Calorie Breakfast Eaters (0 kcal < and < 10% of Estimated Energy Requirement (EER); n = 190, 12%), Moderate Calorie Breakfast Eaters (10% ${\leq}$ and < 25% of EER; n = 861, 54%), or Sufficient Calorie Breakfast Eaters (${\geq}$ 25% of EER; n = 281, 17%). General characteristics including weight status and nutritional quality of breakfast and daily diet were compared among the four groups. The average daily calorie intake of Breakfast Skippers, Low, Moderate, and Sufficient Breakfast Eaters were 1,771 kcal, 1,719 kcal, 1,902 kcal, and 2,349 kcal, respectively; they were 86.3%, 85.9%, 98.0%, and 124.9% of EER, respectively. The percentages of students consuming daily diet with protein, vitamin A, $B_1$, $B_2$, niacin, vitamin C, calcium, phosphorus, or iron less than Estimated Average Requirement decreased in the breakfast groups with the higher calorie level of breakfast intake. The Dietary Variety Score of daily diet significantly increased by increasing the calorie level of breakfast intake. The results indicated the quality of daily diet was positively related to the level of calorie intake from breakfast.

• The Korean Journal of Food And Nutrition
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• v.29 no.4
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• pp.456-464
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• 2016

The purpose of this study was to compare the quantitative and qualitative assessment of dietary intake between patients with metabolic syndrome (MetS) and healthy subjects and to investigate dietary factors related to MetS. Anthropometric measurements, blood analysis, and dietary intake as assessed by 24-hour recall were conducted in MetS patients (n=15) and healthy subjects (n=25). In order to assess the quantity and quality of dietary intake, daily nutrient intake, nutrient density, nutrient intake to dietary reference intake (DRI), nutrient adequacy ratio (NAR), food intake, dietary diversity score (DDS), and dietary variety score (DVS) were analyzed. The statistical differences between MetS patients and controls were analyzed using the SAS software program. Daily energy intake and food intake were not significantly different between the two groups (2,154.3 kcal vs. 1,872.9 kcal; 1,280.0 g vs. 1,261.6 g). There were also no significant differences in daily nutrient intake, nutrient intake ratio to DRI, NAR, or DVS between the MetS group and the control group. However, daily intake of eggs and milk in MetS patients was significantly lower than in the control group (9.0 g/day vs. 30.3 g/day, p<0.05; 0 g/day vs. 49.7 g/day, p<0.05). These results indicate that low intake of eggs and dairy products may be related to the development of MetS.

• Journal of Nutrition and Health
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• v.28 no.1
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• pp.46-52
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• 1995

This study was conducted to assess thiamin nutritional status in Korean female college students on normal diet Weighed food records and 24-hour urine samples were collected from subjects for three days. Mean daily intake of thiamin was calculated from food records. Pooled urine samples were analyzed for thiamin and creatinine. Mean daily intake of thiamin was 0.72$\pm$0.22mg, 72% of Korean RDA for the group. Thiamin intake per 1000kca1 was 0.4997$\pm$0.09mg, which is close to the RDA. Mean daily urinary excretion of thiamin were 130.11$\pm$ 71.06$\mu\textrm{g}$/24hr and 180.59$\pm$129.79$\mu\textrm{g}$/g creatinine. Mean daily thiamin intake(mg/day), but not thiamin intake per 1000kca1 was showed by positive correlated with urinary excretion of thiamin(p<0.01). Thiamin nutritional status of the subjects based on 24-hour urinary excretion of thiamin was deficient in one subject(19%), low in nineteen subjects(36.5%), and acceptable in thirty two subjects(61.5%). Only six subjects were in low thiamin status based on thiamin excretion per gram creatinine. Therefore, total urinary excretion of thiamin seems to be more sensitive to marginal thiamin deficiency compared to urinary excretion per gram creatinine. From the results of the study, the prevalence of marginal thiamin deficiency seems to be high among young Korean adult women.

• Journal of Korean Academy of Nursing
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• v.36 no.6
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• pp.959-967
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• 2006

Purpose: The purposes of this study were to examine the amount of daily fluid intake among nursing home residents and to explore the caregiver's perceived barriers to elderly's fluid intake. Method: Data was collected from 111 nursing home residents and 64 caregiver's in 4 nursing homes. A random, non-consecutive three days of 24 hour fluid intake was measured and recorded. The caregiver's perceived barriers to elderly's fluid intake was assessed using a structured questionnaire. Results: The average amount of daily fluid intake was 1,035(SD=359)ml with the range of 210m1 to 2,050ml. About 52% (n=58) of the subjects had a less than adequate fluid intake. The amount of daily fluid intake was significantly associated with age, mental status, physical functioning, and the number of oral medications ordered. The most frequently mentioned caregiver's perceived barrier was elderly's concern about incontinence with increased fluid intake. Conclusion: Inadequate fluid intake among nursing home residents is prevalent. To enhance adequate hydration of nursing home residents, an institution wide nursing intervention is necessary.

• Journal of Environmental Health Sciences
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• v.42 no.4
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• pp.235-245
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• 2016

Objectives: This study estimated the adult Korean daily intake of acrylamide (AA) and investigated its relationship with demographic, lifestyle and dietary habits by using urinary concentrations of N-acetyl-S-(2-carbamoylethyl)-cysteine (AAMA). Methods: Human data (n=1870) was collected in a nationwide cross-sectional biomonitoring program representing the population (18-69 years) residing in South Korea. Urinary AAMA was analyzed with a LC-MS/MS system. Daily intakes of AA were estimated using mass daily AAMA, which was calculated through urinary AAMA concentration and daily creatinine excretion. Statistical analysis was performed with SAS procedures for calculating geometric means, confidence intervals and the exponentiated beta coefficient of multiple linear regressions. Results: Daily intake of AA was estimated at $0.475{\mu}g/kg$ body weight (BW) per day (95% confidence interval (CI): 0.447-0.503). In the case of current smokers, AA intake was $0.957{\mu}g/kg$ BW per day (95% CI: 0.847-1.067), which was significantly higher than that of former smokers and never smoked (p<0.0001). The strong affecting factors were age (95% CI: 0.68-1.14; p=0.0180), education level (95% CI: 1.05-1.42; p=0.0163), body mass index (BMI) (95% CI: 1.00-1.82; p<0.0001), and smoking status (95% CI: 0.97-3.05; p<0.0001). Korean dietary habits increasing AA intake were coffee (p=0.0005), cup noodles (p=0.0010) and canned foods (p=0.0005). Meanwhile, foods decreasing AA intake were fresh fruit (p=0.0076), cooked beef (p=0.0335) and cooked pork (p=0.0147). Conclusion: The Korean daily intake of AA in adults was estimated to be similar with those found in developed countries. The factors increasing daily AA intake were coffee, cup noodles and canned foods, and decreasing factors were fresh fruit, cooked beef and cooked pork.

• Journal of Sasang Constitutional Medicine
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• v.19 no.3
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• pp.188-205
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• 2007

1. Objectives This study was carried our to investigate the actual nutrient intake based on Sasang Constitution. 2. Subjects and Methods This study was performed with 984 adults(292 males, 692 females) aged 40 to 69, diagnosed of their Sasang constitution(1 Taeyangin, 242 Soyangin, 492 Taeumin, 249 Soeumin). Data was collected using the Semi-Quantitative Food Frequency Questionnaire. The daily mean nutrient intake and the index for evaluation of quality of nutrient intake were investigated and compared among three constitutional groups(Soyangin, Taeumin, Soeumin) 3. Results and Conclusions The comparisons of the daily mean nutrient intake and the index for evaluation of quality of nutrient intake among three constitutional groups were as followings. (1) In male, the daily mean fat-intake of Taeumin was significantly more than that of Soeumin. In the ratio of car bohydrate-intake in total calorie, Soemuin was significantly higher than the other two groups, and in the ratio of fat-intake lower. %RDA of vitamin B was significantly different among groups. (2) In female, the daily mean fat-intake of Soyangin was significantly more than that of Soeumin. In the ratio of carbohydrate-intake in total calorie, Soemuin was significantly higher than Soyangin, and in the ratio of protein and fat-intake lower. In INQ of protein, Soyangin was significantly higher than Soeumin.

• Nutrition Research and Practice
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• v.7 no.4
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• pp.309-314
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• 2013

This study was conducted to investigate the relationship among the current status of calcium intake from milk and milk products, physical growth and bone mineral density in 664 male and female middle school and high school students aged 15-17 years. In the study, the current status of calcium intake from milk and milk products was analyzed, and the height, body composition, and bone mineral density of the right heel bone (calcaneus) were measured. The daily calcium intake of milk and milk products was calculated as the 'dairy equivalent of calcium', which is the calcium content in 200 mL of white milk. The cutoffs of tertiles of the dairy equivalent of calcium were calculated and then the subjects were categorized into 3 groups according to the tertiles, Q1 group (lower intake group), Q2 group (middle intake group) and Q3 group (upper intake group). The daily calcium intake of milk and milk products in Q1, Q2 and Q3 groups was 16.2 mg, 99.7 mg, and 284.0 mg, respectively, and the ratio of milk and milk product consumption to the daily total calcium intake was 5.4%, 27.4%, and 49.7%, respectively. The ratio of total calcium intake to the daily recommended intake in study subjects was 30.5% in Q1, 42.3% in Q2, and 60.7% in Q3, with significant differences (P < 0.05). Height, body weight, BMI, and % of body fat in three tertile groups (Q1, Q2 and Q3) were not significantly different. However, the T scores for bone mineral density in female students in three tertile groups (Q1, Q2 and Q3) was significantly different (P < 0.05). The study showed that the intake of milk and milk products in adolescents, particularly in girls, can improve the bone mineral density without increasing body weight, and thus confirmed that milk intake is important in adolescence.