• 한국지역사회생활과학회지
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• 제26권3호
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• pp.499-509
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• 2015

Efforts to have children consume milk continue across the world for the sufficient supply of calcium and protein. This study examines the frequency and amount of dairy milk and the recognition, acceptability, and knowledge of milk and dairy products by considering fifth- and sixth-graders in Hwaseong, Korea. The acceptability of milk and dairy products measured based on a five-point Likert-type scale was assessed to determine its correlations with breakfast frequency, the frequency of milk intake, and milk knowledge. According to descriptive statistics, 47% and 53% of the subjects were fifth- and sixth-graders, respectively, 53% and 47% were male and female, respectively, 45.3% and 51.2% had mothers in their thirties and forties, respectively, and 57% had working mothers. Breakfast frequency was 5.2 and 5.3 times per week, and milk and dairy intake was 4.6 times. The milk knowledge score was 5.3 out of 10 points. The average daily intake of milk was a cup (55.1%), and a vast majority preferred white milk (68.6%). Ice cream bar type (4.49 points) and cone type (4.48 points) showed the highest acceptability, and breakfast frequency was positively correlated with white milk and cheddar cheese (p<0.01). Daily milk intake frequency was positively correlated with white milk and fortified milk. Milk knowledge was positively correlation with white milk, fortified milk, functional yogurt (p <0.05), fermented milk, and cheese (p<0.01). The higher the breakfast frequency, the more likely the intake of white milk (p<0.01). An increase in milk intake increased milk knowledge (p<0.05). The higher the level of knowledge, the more likely the intake of fortified milk and the frequency of milk intake. These results suggest that school lunch milk may increase awareness and milk intake through continuing education in milk knowledge. High acceptability scores for white milk, fortified milk, and fermented milk indicate their suitability for school milk consumption.

• Nutrition Research and Practice
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• 제7권4호
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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.

• 한국식생활문화학회지
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• 제31권3호
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• pp.205-212
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• 2016

The purpose of this study was to investigate the nutrition knowledge, perception, and intake frequency of milk and milk products among middle school students as well as provide the basic data needed for increasing milk and milk product consumption. To achieve the purpose of this study, a survey with 385 students of four middle schools located in Chuncheon was conducted. The level of nutrition knowledge of milk and milk products in females was slightly higher than that in males (p<0.01). Flavored milk and ice cream were preferred the most in each category, and 'taste' influenced the selection of milk and milk products the most. The intake frequency of whole milk was the highest, and that of flavored milk was lowest among various milks. Ice cream showed the highest intake frequency while cheese showed the lowest among milk products. Male students showed higher intake frequency of milk and milk products. Groups having high level of nutrition knowledge showed the highest intake of whole milk, whereas groups having a low level of nutrition knowledge preferred processed milk, low fat or non-fat milk, and cheese the lowest.

• Nutrition Research and Practice
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• 제12권2호
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• pp.143-148
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• 2018

BACKGROUND/OBJECTIVES: Average intake of calcium among college students is below the recommended intake, and knowledge surrounding the attitudinal and behavioral factors that influence milk and dairy intake, a primary food source of calcium, is limited. The purpose of this study was to evaluate college students' attitudes and behaviors concerning milk and dairy consumption and their association with calcium intake. SUBJECTS/METHODS: Participants were 1,730 undergraduate students who completed an online survey (SurveyMonkey) as part of baseline data collection for a social marketing dairy campaign. The online survey assessed attitudes and behaviors concerning milk and dairy intake, and calcium intake. Questions about milk- and dairy-related attitudes and behaviors were grouped into 14 factors using factor analysis. Predictors of calcium intake were then evaluated. RESULTS: Median calcium intake across all participants was 928.6 mg/day, with males consuming higher calcium intakes than females (P < 0.001). Adjusted for gender, calcium intakes were most strongly (and positively) correlated with associating milk with specific eating occasions and availability (i.e., storing calcium-rich foods in one's dorm or apartment) (both P < 0.001). Other correlates of calcium intake included: positive-viewing milk as healthy (P = 0.039), having family members who drink milk) (P = 0.039), and taking calcium supplements (P = 0.056); and negative-parent rules concerning milk (P = 0.031) and viewing milk in dining halls negatively (P = 0.05). CONCLUSIONS: Calcium intakes among college students enrolled in the current study was below the recommended dietary allowance of 1,000 mg/day, reinforcing the need for dietary interventions in this target population, especially females. Practitioners and researchers should consider the factors found here to impact calcium intake, particularly associating milk with specific eating occasions (e.g., milk with breakfast) and having calcium-rich foods available in the dorm room or apartment, as intervention strategies in future efforts aimed at promoting milk and dairy foods and beverages for improved calcium intake in college students.

• 대한지역사회영양학회지
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• 제23권6호
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• pp.488-495
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• 2018

Objectives: This study examined the milk intake patterns with lactose and milk fat in Korean male adults using the following variables: milk intake level, awareness of lactose, and milk fat, health problems, and necessity of milk intake. In addition, the factors affecting milk intake were analyzed by multiple regression analysis. Methods: The subjects were 532 males aged 20 years or older among the nationwide milk purchasing group. The subjects were 223 (41.9%) in the 20-29 year age group, 188 (35.3%) in the 30-49 year age group and 121(22.7%) in the over 50 year age group. The survey was conducted using ANOVA and multiple comparative analysis to examine the differences in age and multiple regression analysis was performed to investigate the factors affecting the intake of milk. Results: The intake of milk in the subjects was $538.14{\pm}494.23ml$ per week. There were statistically significant differences in the subjects' age according to processed milk, low fat, nonfat milk, cheese, and ice cream. The perception of milk and lactose and milk fat was recognized as a good food for skeletal health when milk was consumed. Among the milk nutrients, lactose was highly recognized at the age of 20-29, and milk fat was recognized in those over 50 years. In addition to lactose and milk fat, calcium was the most highly recognized among the milk nutrients. Health problems associated with milk were skeletal health, obesity, and lactose intolerance. The perception of lactose intolerance was related to lactose intolerance and fatness, and the dietary behavior was unaffected. Conclusions: This study examined the milk intake patterns of adult Korean males. Many variables were found to be related to the intake of milk. In this study, the milk intake was high when there was no problem with the perception and dietary behaviors of milk nutrition (lactose and milk fat). This study focused on lactose and milk fat, which are major nutrients in milk, and it is a new perspective study among milk-related research.

• Journal of Nutrition and Health
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• 제30권5호
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• pp.506-511
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• 1997

In order to investigate the body weight change and human milk intake of breast-fed infants, we examined thirty-three infants with test-weing method in Sokcho area during the first 5 months of lactation. The average birth weight of infants was 3300g. They grew 3300, 3805, 4676, 5878, 6786, 7403, and 8111g when they became 0.5, 1, 2, 3, 4, and 5 months old. The is human milk intake was 515, 650, 718, 731, 746 and 796g/day during the lactatin. Human milk intake of boys was significantly higher than that of girls at 1(p<0.05), 2(p<0.01), and 3(p<0.01) months of lactation. During lactatin, the number of feedings per day decrerased. The human milk intakes per feeding had increased from 54.4g at 0.5 months to 98.9g at 5 months of lactation The human milk intake on infants was not affected by gestational period and birth weight. From this survey, we found a difference between boys and girls in human milk intake.

• 대한영양사협회학술지
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• 제11권4호
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• pp.449-461
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• 2005

This study was performed to investigate the preference and consumption pattern on milk and milk products of middle and high school students. The subjects were 1,195 students(590 middle school and 605 high school students) living in Geochang area. The survey was conducted by using a self-administered questionnaire in November, 2004. The results were as follows. Sixty-three point four percent of the subjects liked milk, and the main reason was 'accelerate growth and development'(55.4%). Preferred tastes of milk were 'savory taste'(35.4%) and 'sweet taste' (29.9%). Banana milk, chocolate milk, strawberry milk, ice cream, yoplait and yogurt were highly preferred. General preference for different kinds of milk was significantly higher in high school students and male students than in middle school students and female ones. With regard to preference for dairy products, cream (p<0.01) and butter(p<0.05) was preferred more by male students than by female ones, ice cream(p<0.05), yoplait (p<0.05) more by female students than male ones. The score of milk intake frequency was 3.84(3-4 times a week) out of 5 points(7 times a week) for white milk, and that of chocolate milk was 1.98, banana milk 1.96, strawberry milk 1.72, coffee milk 1.65, showing that these products were drank less then once a week. In addition, the white milk intake frequency was significantly higher in middle school students and male students than in high school students and female students(p<0.001). Preference for milk showed a positive correlation with preference for dairy products (r=0.543, P<0.001) and frequency of milk intake(r=0.429, P<0.001). This suggests that those who prefer milk high tend to prefer dairy products and to show high milk intake frequency. In addition, milk intake frequency was in a high positive correlation with dairy product intake frequency(r=0.648, P<0.001).

• 대한영양사협회학술지
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• 제13권1호
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• pp.61-72
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• 2007

In order to study milk preference and intake pattern of adolescents, the questionnaire survey was conducted with 929 middle and high school students residing in Chungnam cities through October and November 2004. Of the subjects, 56.3% liked milk or liked very much. They preferred chocolate and fruit-tasted milk to plain milk. Reasons for liking milk were for health and its taste, while the reasons of disliking were unpleasant smell and stomach upset. However those who disliked milk did like milk products such as ice-cream, yogurt or cheese. Of the students 35.1% drank milk 2 times or more a day, while 11.8% drank milk less than 2-3 times a month. As a whole they drank milk 8.6$\pm$6.7 times a week, of which 4.3$\pm$3.1 times for plain milk. Daily intake amount was estimated as 308$\pm$315mL. Middle-school students and boys drank more milk than high-school students and girls, respectively. Among the students 64.3% used to drink 1 cup of milk at a time, and 58.3% drank only milk without other foods. It was shown that 51.8% took milk school-serviced and their milk intake frequencies were higher than those of who were not given school milk service. Also milk intake frequencies was higher in students whose mother were housewives than in students whose mother had jobs. Milk preference, intake frequency, and one portion size showed significant and positive correlations each other. In conclusion, milk intake level of the subjects was insufficient and unpleasant smell and stomach upset were the main reasons which decreased milk preference and consumption. Students with low milk preference should be guided with how to drink milk deliciously, how to choose milk type and its products. It is also effective to go into school milk service and to provide milk at home anytime. As students like much fruit-tasted and chocolate milk, the milk processing industries should take their nutritional and health benefits into considerations importantly.

• Asian-Australasian Journal of Animal Sciences
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• 제7권2호
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• pp.231-237
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• 1994

Three concentrations of P (0.33, 0.43 and 0.54%) and two concentrations of Ca (0.60 and 0.97%) in ration dry matter were evaluated for effects on dry matter intake and on milk yield and composition using 24 Holstein cows. Cows were arranged in a $3{\times}2$ factorial experiment as an incomplete randomized block design with three 28-day periods. Each cow consumed at least one ration with each concentration of Ca. Dry matter intake, yield of 3.5% Fat Corrected Milk, and milk composition were not affected by concentration of P, but milk yield was greater when lowest concentration of P was fed (22.8 vs. 22.1 kg/day; p<0.07). Cows fed rations containing 0.60% Ca had greater milk (22.7 vs. 21.9 kg/day; p<0.02) and 3.5% Fat Corrected Milk yields (p<0.03) and slightly greater protein content than when fed 0.97% Ca. Dietary Ca:P ratios between 1.1:1 and 2.9:1 had no effect on dry matter intake, milk yield, or composition. Concentrations of P in plasma were within the normal range for all rations. Because cows had high dry matter intake, mean daily intakes of both P and Ca were greater than required for their level of milk yield.

• 동아시아식생활학회지
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• 제14권1호
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• pp.27-33
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• 2004

The objectives of the present study were to measure the content of iron, copper and zinc in human milk and to estimate the intake of iron, copper and zinc of breast-fed infants during the early period of lactation. Twenty-five lactating women who delivered in a hospital in Seoul volunteered for the study. Milk samples were collected at day 2, 3, 4, 5, 6, 7, 15 and 30 postpartum. The contents of iron, copper and zinc were determined using the atomic absorption spectrophotometer after wet digestion. The intakes of iron, copper and zinc of infants were estimated by multiplization with the infant milk intake reported in our laboratory. The content of iron was 0.58 $\mu\textrm{g}$/g in colostrum, 0.48 $\mu\textrm{g}$/g in transitional milk and 0.39 $\mu\textrm{g}$/g in mature milk while the estimated iron intake of infants was 271, 255 and 259 $\mu\textrm{g}$/day, respectively. The content of copper in the milk was 0.45 $\mu\textrm{g}$/g in colostrum, 0.43 $\mu\textrm{g}$/g in transitional milk and 0.33 $\mu\textrm{g}$/g in mature milk while the estimated copper intake of infants was 210, 229 and 220 $\mu\textrm{g}$/day, respectively. The content of zinc in the milk was 5.24 $\mu\textrm{g}$/g in colostrum, 3.70 $\mu\textrm{g}$/g in transitional milk, 2.93 $\mu\textrm{g}$/g in mature milk while the estimated zinc intake of infants was 2452, 1968, and 1949 $\mu\textrm{g}$/day, respectively. These results suggest that copper and zinc intake of infants are met to RDA but iron is not.