• Journal of the East Asian Society of Dietary Life
• /
• v.15 no.6
• /
• pp.633-643
• /
• 2005

The purpose of study was to investigate nutritional supplements intake of elementary school students aged 7 to 12 years in Incheon The subjects were 631 mothers of schoolchildren and cross sectional study was conducted by a self-administered questionnaire. Nutritional supplements were taken by $42.3\%$ of the surveyed elementary school students. Among nutritional supplements they toot vitamin and mineral accounted for $47.3\%$, herbs and chinese medicine $39.3\%$ and dietary supplements $10.7\%.$ Among reasons for taking nutritional supplements, help for growth, health promotion, supply for deficient nutrients and prevention or treatment of disease were in order. As for the reasons for not taking nutritional supplements, most of the subjects answered that meals are enough in getting nutrients for children Mother of elementary school students usually Dew the health claim of the nutritional supplements before taking the Also they usually got the information of the nutritional supplements 1mm doctors or pharmacist and bought the nutritional supplements at drugstores, oriental medicine clinic and on-line shop in order. As for the effect of nutritional supplements, $43.7\%$ of the subjeces answered as 'effective' and $81.7\%$ of the mother of elementary school students who took nutritional supplements answered positively that they would continue to have their children take it Among the reasons they would continue to have their children take it help for growth ranked the first. therefore, these results my provide basic informations on nutritional supplements used by the elementary school students in Incheon.

• Journal of the East Asian Society of Dietary Life
• /
• v.15 no.6
• /
• pp.644-654
• /
• 2005

The purpose of this study was to investigate the related factors to nutritional supplements intake of elementary school student aged 7 to 12 years in Incheon area. The subjects were 631 mothers of elementary school students and cross-sectional study was conducted by a self-administered questionnaire. In view of the relation with general circumstances, taking nutritional supplements was shown to be significantly associated with general and socio-demographic factors such as father's job, mothers concern about children's academic record, family's monthly income and food cost, and the experience of other family members' taking nutritional supplement. In view of the relation with anthropometric and health-related factors, taking nutritional supplement was associated with elementary school student' weight obesity index, mothers evaluation of children's height and weight mother's concern about health and growth of children, and ,disease of children. In view of the dietary behavior-related factors, taking nutritional supplements was associated with skipping breakfast, food habits, and mothers beliefs and attitude about nutrition and nutritional supplements. However, it was shown that mothers nutritional knowledge did not affect taking nutritional supplements. Therefore, it may be suggested that general and socio-demographic factors, anthropometric and health-related factors, dietary behavior-related factors, and mother's nutritional beliefs and attitude are important determinants in children's taking nutritional supplements.

• Journal of Nutrition and Health
• /
• v.39 no.3
• /
• pp.299-306
• /
• 2006

This study was done to investigate the use of nutritional supplements (NS) in Korean elite soccer players using an anonymous questionnaire. NS were classified into health supplements, manufactured health food supplements, chinese medicines & tonic foods, and nutrient supplements. Information was sought on the type of NS and factors that might influence supplement use including selected demographic parameters and health related variables. The data were collected from 241 athletes (aged $24.6{\pm}3.8$ years) in 9 professional soccer club. The prevalence of NS use among the subjects was 81.3%. Health supplements were used most frequently and nutrient supplement drug was the second one. Among the health supplements, weight/muscle gainer and calorie replacement product were most frequently used. Vitamin supplements were most frequently used among all nutrient supplement drugs. Users of NS were higher age (p<0.05) duration of exercise (p<0.05), and income (p<0.05) than non-users. The married (p<0.05) and a member of K-league (p<0.01) tended to have higher prevalence of NS use. The main adviser of NS were family (55.3%) and oneself (39%) instead of coach or sports nutritionist. Although NS use, only 26.2% certainly check up nutritional information on their used NS. Among the subjects, 84.5% of them felt that NS use were improved athletic performance, and 86.5% of them will to keep on taking supplement. These data suggest that a large number of elite soccer players use NS and these players may require education about healthy nutritional supplement practice and on the proper use of nutritional supplements.

• Korean Journal of Exercise Nutrition
• /
• v.13 no.2
• /
• pp.101-107
• /
• 2009

The objectives of this study were to investigate 1) the nutritional knowledge, 2) the use of nutritional supplements, and 3) nutrient intakes of male elite bodybuilders (n=20). Participants carried out a comprehensive survey, anthropometric assessment, and 1 day food record. Daily nutrient intakes of the subjects were analyzed using Computer Aided Nutritional Analysis Program (Can-pro 3.0). The mean age of the subjects was 23.4 years. The mean duration of exercise was 5.3 years. The average scores of nutritional knowledge were 71.0%. The subjects were gathered nutrition information from nutrition book (65%), mass communication (50%), friends (50%) and coach (30%) in order. Ninety percentage of the subjects reported that they were taking nutritional supplements. Major reasons for taking nutritional supplements were to improve performance and to build-up muscle. The most frequently taken nutritional supplements were protein powder (85%), multivitamin/mineral (75%), BCAA (60%) and glutamine (55%) in order. The average daily energy intakes of the subjects were 4,248.7 kcal. The mean intake of protein was 370.3 g/day (3.93 g/kg BW). The ratio of total energy intake from carbohydrate, protein and lipid was 51 : 34 : 15. The intakes of most vitamin and minerals through food and nutrition supplements were much higher than those of each nutrient of the RDAs. Especially, vitamin B complex and vitamin C intakes were ranged from 500 to 3,000% of KNHNES. More research needs to be conducted to determine the optimal amounts of carbohydrates, protein, lipid and micro-nutrients for the bodybuilders.

• Journal of Nutrition and Health
• /
• v.25 no.3
• /
• pp.264-274
• /
• 1992

The tendency o taking supplements as the means of promoting health status has been increasing. This research was performed to reveal the influence of nutritional knowledge and health-consciousness on taking-supplements and to reveal that of general characteristics and related factors. The data were obtained by self-administering questionnaire and study population was adults aged 18-81 years living in Soul(N=1300) The overall response rate was 70%(N=910) The results can be summarized as follows: 1) A substantial percentage(82.5%) of the subjects used some kinds of nutrient supplements Forth nine percent of respondents used both drug type supplements and food type supplements 2) The main reasons for taking supplements were ; to prevent illness and to treat illness' and ' to recover from fatigue and to give me energy' The main reason for not-taking was 'Because I am Healthy' 3) The factors influencing on taking supplements were sex marital status disease exercise recognition of knowledge and health-consciousness. When the confounders of health-conscious-ness recognition of knowledge and self-estimated score were controlled threr were significant correlations between health-consciousness and taking-supplements.

• Journal of Nutrition and Health
• /
• v.32 no.3
• /
• pp.268-276
• /
• 1999

This study was performed to investigate the factors related to vitamin & mineral supplement use by the adolescents. Nine hundred and seventy-two adolescent boys and girls attending middle or high schools were chosen from various cities and rural communities in Korea. In this study, the factors affecting vitamin & mineral supplement use were analyzed from a self-administered questionnaire. It was found that vitamin & mineral supplements were taken by 31.3% of subjects. High school students(p<.01), female girl students(p<.001), and rural-dwellers(p<.001) took vitamin & mineral supplements more frequently than their complementing groups. The socioeconomic status of the family (p<.01), and supplement consumption by parents and siblings respectively affected the supplement use by the subjects(p<.001). Vitamin·mineral supplements were consumed more often in subjects who perceived their health as poor(p<.001), skipped breakfast(p<.05), and received nutritional information from books or magazines(p<.05). However, food habits and nutritional knowledge score of subjects did not affect vitamin & mineral supplement use. These findings suggest that adolescents take vitamin & mineral supplements commonly, and they tend to use supplements without prescription. Vitamin·mineral supplement consumption seems to be affected by general characteristics, health related variables, and meal management attitudes of subjects. Therefore, nutritional understanding and education are required in regard to the used of vitamin & mineral supplements, and the relationship between balanced diet and good health for the adolescents.

• Journal of Nutrition and Health
• /
• v.30 no.2
• /
• pp.139-146
• /
• 1997

Use of the viamin-mineral supplements markedly increased with the awareness of diet and health. Data were collected from the self-administered questionnaire of 450 free living elderly, 60 to 94 years old, in Korea, to assess the relationships between socioeconomic variables, beliefs about nutrition, and the factors affecting gupplements usage. In addition, vitamin-mineral intakes through the supplements were calculated, and compared with RDA. 44.9% of the subjects took the vitamin-mineral supplements, and significantly higher percentage of women(49.3%) than men(38.1%) took supplements(p<0.05). The higher the education level, monthly pocket money, the percentage of supplements consumption was higher. People living in large cities took more supplements than those in small cities. One of the mainly cited reasons for taking supplements was to maintain health. The most favored nutrient supplements used by the subjects were in the order of vitamin B complex, vitamin E and Calcium, and vitamin-mineral intake through the supplements were much greater than RDA and ranges of their intakes were very wide. Vitamin B1 and vitamin E were observed to consume excessive amount(63 times of RDA and 40 times of RDA, respectively). The reasons for supplementation were often inappropriate and unreliable sources of information were used. Thus nutritional understanding and education of the elderly peopled are needed in regard to the use of vitamin-mineral supplements, and the relationship between adequate diet and good health.

• Journal of Nutrition and Health
• /
• v.40 no.4
• /
• pp.362-370
• /
• 2007

The study was designed to assess the effect of iron and cereal supplementation on children's iron nutritional status in social welfare institutions. Dietary survey was carried out methods of food weighing and record by interview (n=74). A nutritional intervention study was carried out through supplementing iron supplements and cereal for 4 weeks in 4-12 years old children. Children received daily 40 mg elemental Fe as iron protein succinylate (n=23) and 3.6 mg elemental Fe as 100 g cereal (n=24), respectively. Blood samples were drawn before and after supplementation. Nutrients which children's intake was less than two-thirds of the RDA were vitamin A, vitamin B-1, vitamin B-2, calcium and iron. The mean daily intake of iron was 5.1 mg for male and 4.9 mg for female, and 52.3% for male and 45.4% for female of Korean RDA. The proportion of children with iron depletion assessed by TIBC (> 360 ${\mu}g$/dl) and serum ferritin (< 20 ng/ml) were 56.6% and 58.7%, respectively. The proportion of children with the iron deficient erythropoiesis assessed by serum iron (< 70 ${\mu}g$/dl), Hb (< 12 g/dl), Hct (< 36%) were 76.0%, 58.7%, 64.0%, respectively. After iron supplements treatment, Hb (p<0.001), Hct(p<0.001), serum iron (p<0.001), transferrin saturation (p<0.001) and serum ferritin (p<0.Ol) increase significantly and only TIBC decreased slightly. After cereal supplementation, in anemic children, Hct (p<0.001), serum iron (p<0.001) and transferrin saturation (p<0.001) were significantly increased. The effect of iron supplements and cereal supplementation in children with iron deficient erythropoiesis were more effective to improve the iron nutritional status than children with iron depletion. It was concluded that cereal supplementation program in anemic children was also effective to improve iron nutritional status.

• Korean journal of food and cookery science
• /
• v.24 no.5
• /
• pp.672-681
• /
• 2008

The principal objective of this study was to assess the current status of elementary students' intake of dietary supplements, in an effort to diagnose any overnutrition, and to employ the results as basic data for the establishment of a balanced nutritional education. A survey was conducted by using a questionnaire administered to 734 elementary students’ parents in Seoul, and the analyzed results were as follows: Most parents believed that their nutritional knowledge was better than the norm(91.5%). However, almost half of the parents(49.2%) were feeding certain dietary supplements to their children, despite their perception that their children were already healthy, and were not recognizing any significant beneficial effects from those supplements. The most popular dietary supplements being fed were vitamin complexes. The majority of children took at least one type of dietary supplements at a monthly cost of approximately 10,000${\sim}$30,000 won. These results revealed the potential for overnutrition in some of the elementary students as the result of dietary supplement intake; thus, further studies involving assessments of risk for dietary supplement overconsumption in children and proper dietary education for the parents are suggested.

• Korean Journal of Community Nutrition
• /
• v.3 no.1
• /
• pp.94-106
• /
• 1998

Nutrient supplements are often used by athletes as ergogenic aids. This study was done to investigate the use of nutrient supplements, nutritional knowledge and nutrient intakes of athletes. Subjects of this survey consisted of 195 national team athletes. The prevalence of nutrient supplement use among all subjects was 30.3%, and the frequency of use, by decreasing order, was weight lifting, taekwondo and badminton athletes. Sport drinks were the type of nutrition supplement used most frequently and vitamin C was the second one. Major reasons for nutrient supplement use were to improve training performance and to recover from fatigue, to supplement fluid and to control weight. The average score of nutritional knowledge was $19.9\pm{2.5}$ for nutrient supplement users, and $19.8\pm{3.6}$ for nutrient supplement nonusers. Intakes of protein, calcium and niacin of the user were higher than those of the nonuser. This information provided by this study can help sport nutritionists identify nutrient supplement most often consumed by national elite athletes and can aid counselors as they guide athletes towards more healthful nutrition practices.