Korean Journal of Community Nutrition

[English]
Development of a Zinc Database to Estimate the Zinc Intake Levels in the Korean Toddlers and Preschool Children: Su-In Yoon, Jae Eun Shim; Korean J Community Nutr 2021;26(2):103-110. Published online April 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.2.103

Objectives
The objective of this study was to develop a zinc database (DB) to estimate the intake levels of zinc in Korean toddlers and preschool children using the data from the Korea National Health and Nutrition Examination Survey (KNHANES). Methods: A total of 3,361 food items for the DB representing the usual diet of Korean toddlers and preschool children were selected based on KNHANES (2009~2013) and the food composition table of Rural Development Administration (RDA). The existing values of zinc in foods were collected from the latest food composition tables of RDA (9th revision) and the US Department of Agriculture (legacy release). The zinc contents were filled preferentially with these collected values. The missing values were replaced with the calculated values or imputed values using the existing values of similar food items from the data source. The zinc intake levels of Korean toddlers and preschool children were estimated using KNHANES and zinc DB Results: A total of 1,188 existing values, 412 calculated values, and 1,727 imputed values were included in the zinc DB. The mean intake levels of zinc for 1-2-year-old children and 3-5-year-olds were 5.17 ± 2.94 mg/day and 6.30 ± 2.84 mg/day, respectively.There was no significant difference in the zinc intake levels between boys and girls in each group. Conclusions: This newly developed zinc DB would be helpful to assess the zinc nutritional status and investigate the association between the zinc intakes and related health concerns in Korean toddlers and preschool children.

Citations

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Food sources of zinc and nutritional status with usual dietary zinc intake in Korean toddlers and preschool children
SuJin Song, Jae Eun Shim
Nutrition Research and Practice.2023; 17(6): 1211. CrossRef

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[English]
Evaluation of Dietary Zinc, Copper, Manganese and Selenium Intake in Female University Students: Yun Jung Bae, Mi Hyun Kim, Jee Young Yeon; Korean J Community Nutr 2012;17(2):146-155. Published online April 30, 2012; DOI: https://doi.org/10.5720/kjcn.2012.17.2.146

Abstract PDF PubReader

This study aimed to measure and evaluate the intakes of four antioxidant trace elements, namely, Zn, Cu, Mn, and Se in 19-29y-old female university students in Korea. Diet data were collected by 3-day dietary records in 644 subjects. The mean age, height, weight and body mass index of the subjects were 20.08 years, 161.77 cm, 54.26 kg and 20.82 kg/m2, respectively. The mean, median and 25th-75th percentile intakes of Zn, Cu, Mn, and Se in the subjects were 12.83 mg (12.40 mg, 9.59 to 15.34), 1.30 mg (1.27 mg, 1.00 to 1.57), 3.19 mg (3.12 mg, 2.45 to 3.86), and 50.90 microg (50.17 microg, 37.59 to 64.35), respectively. The proportion of subjects whose Mn intake was adequate or less was 62.89%, and the proportions of subjects whose Zn, Cu and Se intakes were at the estimated average requirements or less were 10.09, 4.97, and 39.60%, respectively. The major food group for dietary intakes of Zn, Cu, Mn, and Se was cereal, providing 8.55 mg (66.60%), 0.78 mg (59.93%), 2.09 mg (65.50%), and 16.83 microg (32.43%), respectively. Many female university students were deficient in Mn and Se compared with the dietary reference intakes. Therefore, except for cereal, it is required to consume a diet consisted of various food sources for increasing the intakes of antioxidant trace minerals, especially animal food groups.

Citations

Citations to this article as recorded by

Dietary zinc intake and sources among Koreans: findings from the Korea National Health and Nutrition Examination Survey 2016–2019
Jee-Seon Shim, Ki Nam Kim, Jung-Sug Lee, Mi Ock Yoon, Hyun Sook Lee
Nutrition Research and Practice.2023; 17(2): 257. CrossRef
Assessment of selenium and zinc status in female collegiate athletes
Okhee Lee
Journal of Nutrition and Health.2018; 51(2): 121. CrossRef
Lower serum zinc levels are associated with unhealthy metabolic status in normal-weight adults: The 2010 Korea National Health and Nutrition Examination Survey
H.K. Yang, S.H. Lee, K. Han, B. Kang, S.Y. Lee, K.H. Yoon, H.S. Kwon, Y.M. Park
Diabetes & Metabolism.2015; 41(4): 282. CrossRef
Cytoprotective Effect of Zinc-Mediated Antioxidant Gene Expression on Cortisol-Induced Cytotoxicity
Mi Ja Chung, Sung Hyun Kim, In Min Hwang
Journal of the Korean Society of Food Science and Nutrition.2015; 44(5): 649. CrossRef
Effects of Repetitive using Lime Bordeaux Mixture in the Copper Concentration of the Soil and Ginseng Root
Won-Kwon Jung, Deok-Jong Ahn, Jin-Kook Choi, Tae-Suk Ryu, Myeong-Hwan Jang, Tae-Ryong Kwon, Jun-Hong Park, Sang-Jo Park
The Korean Journal of Pesticide Science.2014; 18(4): 404. CrossRef
Dietary behavior and nutritional status among Chinese female college students residing in Korea
Gaowei, Soyeon Kim, Namsoo Chang, Ki Nam Kim
Korean Journal of Nutrition.2013; 46(2): 177. CrossRef

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[English]
Levels of Serum Antioxidant Minerals and Enzyme Capacities of Korean Male Patients with Coronary Artery Disease: Eugene Shim, Soo Yeon Kim, Eun Jung Chung, Seung Yun Cho, Yang Cha Lee-Kim; Korean J Community Nutr 2007;12(4):396-404. Published online August 31, 2007

Abstract PDF: Increased oxidative stress contributes to the progression of atherosclerosis. We measured serum antioxidant mineral concentrations, capacities of serum antioxidant enzymes and fasting lipid profile in 97 male patients with coronary artery disease (CAD) and 21 male controls. Nutrient intake was assessed by the semi-quantitative food frequency method. CAD patients were divided into single-vessel disease (SVD, n = 66) and multi-vessel disease (MVD, n = 31) groups on the coronary angiography. The ratio of serum LDL- to HDL-cholesterol elevated with an increasing number of diseased vessels compared to the control (control < SVD

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[English]
Iron Nutritional Status by ALAD Genotype and Intervention Study for Rural Area Residents: Hee Seon Kim, Min Kyung Kim, Sohee Kim, Sung Soo Lee, Byung Kook Lee; Korean J Community Nutr 2006;11(6):771-778. Published online December 31, 2006

Abstract PDF: Previous studies have suggested that delta-aminolevulinic acid dehydratase (ALAD) phenotype differently affect mineral metabolism. The objective of this study was to determine the effectiveness of 6-month iron supplementation as syrup of NaFeEDTA in improvement of iron status according to ALAD genotype. One hundred thirty adult women living in rural areas of Asan were provided NaFeEDTA syrup once a week for 6 months at the dose of 64mg Fe/week. Three hundred control subjects were observed during the study period. Fasting blood was obtained for analyzing hemoglobin (Hb) and zinc protophorphyrin (ZPP) and serum was analyzed for ferritin, iron and total iron capacity (TIBC) levels before and after iron supplementation. Ninety percent of ALAD 1-1 (ALAD1) and 10% of ALAD 1-2 (ALAD2) genotype were observed in the control group. However, in the intervention group, 98% showed ALAD1 while only 2% was ALAD2, which is significantly lower proportions of ALAD2 compared to the control group (p<0.01). The iron status of intervention group significantly improved except for ferritin and TIBC regardless of ALAD genotype, while the control group did not show any changes in iron status except for ZPP. ZPP concentration of the control group significantly increased in both ALAD1 and 2 while the intervention group showed significantly decreased ZPP after supplementation in ALAD1. Iron supplementation in the form of NaFeEDTA seems to be effective in reduction of ZPP levels although ALAD2 did not show significant changes due to the small number. However, it is difficult to make a conclusion from these results, and more specified further investigation is needed with more participants.

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[English]
Relationship between Zinc Status and Obesity of Type 2 Diabetic Women: Jung Hee Lee, Hee Ja Lee, In Kyu Lee, Jin Sook Yoon; Korean J Community Nutr 2005;10(1):70-78. Published online February 28, 2005

Abstract PDF: Zinc is known to have important effects on insulin activity and to increase the body fat deposition. The purpose of this study was to investigate the zinc status and obesity in 50 type 2 diabetic women visiting public health center and hospital. The mean age was 57.9 +/- 6.9 years old. The mean of diabetic duration was 8.0 +/- 6.5 years. Body mass index (BMI) of diabetes was 23.2 +/- 2.3 kg/m2. There were no significant differences of mean age, anthropometric indices, and insulin level other than fasting blood sugar (p< 0.001) and insulin resistance (p< 0.001) between diabetes and control group. The obesity ratio of diabetes was 20%, 66% and 84% for BMI, waist circumference and waist/hip ratio (WHR), respectively. Plasma zinc level was not significantly different between diabetes and control group. However, urinary zinc excretion of diabetes was approximately twice of control group (p< 0.001). Urinary zinc loss was fivefold higher in the hyperglycemia (HbA1c > 10%) than in normal blood glucose (p< 0.001). Anthropometric indices were decreased in hyperglycemia. On the other hand, there were the tendency of increased urinary zinc in obese group for waist circumference and percent of body fat. These results suggested that controlled normal blood glucose could improve hyperzincuria and anthropometric changes in type 2 women diabeties.

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[English]
The Relationship between Zinc Concentration of Maternal, Umbilical Cord, and Placenta and Birth Weight: Hyun Sook Bai, Hong Seok Ahn; Korean J Community Nutr 2003;8(6):814-821. Published online December 31, 2003

Abstract PDF: The purpose of this study was to assess the maternal zinc status during pregnancy and to evaluate the relationship between the zinc concentration of maternal, umblical cord blood and placental tissue and pregnancy outcomes. Venous blood samples were drawn from 53 pregnant women just before delivery and the cord blood of their newborn babies was collected immediately after birth. In addition, placental tissues were extracted. We investigated the difference in the concentration of zinc in maternal, umbilical cord blood and placental tissue in two gestational age groups (preterm delivery group [PT] and normal term delivery group [NT]) at 34.7 wk and 39.0 wk of mean gestational age, respectively). We also assessed correlations of the zinc concentration of maternal, umbilical cord blood and placental tissue. Lastly, we studied the correlations between the birth weights and the zinc concentration in the maternal, umbilical cord blood and placental tissue. The concentrations of maternal serum zinc and of umbilical cord serum zinc were significantly higher in the PT group (76.9 +/- 37.4 microgram/dl, 101.3 +/- 41.4 microgram/dl) than in those of the NT group (57.8 +/- 22.4 microgram/dl, 80.7 +/- 27.5 microgram/dl), respectively (p < 0.05). The zinc concentration of the umbilical cord blood was significantly higher than that of the maternal blood in both groups (p < 0.05). There was no significant correlation between the gestational age and the serum zinc concentration in the cord or the maternal serum. Our results showed that there was a negative relationship between the birth weight (r = -0.286) and the maternal serum zinc concentration. Despite there not being a significant difference, there was tendency for the highest concentrations of maternal serum zinc to be associated with the lowest birth weights. These findings support a possible relationship between the maternal zinc status and the pregnancy outcome, and suggest that zinc may play a role in the many biological processes involved in the successful outcome of a pregnancy.

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[English]
Nutrients Intake, Zinc Status and Health Risk Factors in Elderly Korean Women as Evaluated by the Nutrition Screening Inistiative (NSI) Checklist: Jin Sook Yoon, Junghyun Lee; Korean J Community Nutr 2002;7(4):539-547. Published online August 31, 2002

Abstract PDF: The purpose of this study was to investigate whether the health status as determined by a self-assessment checklist was related to the nutritional status of elderly Korean women. We interviewed 59 female subjects living in the Daegu area aged over 55 years. Information on their dietary intake on two consecutive days was collected by the 24-hour Recall Method. Their body compositions were measured using a Bio-electrical Impedence Fatness Analyzer. Their zinc status was evaluated according to their dietary zinc intake and urinary zinc excretion in urine samples collected for 24 hours. Their heath status was determined by a NSI Checklist. While 50.9% of the total subjects belonged to a moderate nutritional risk group, 23.7% of the subjects were at a high nutritional risk. It appeared that only 25.4% of the subjects were evaluated as being healthy. Therefore, the overall nutritional health status of the elderly females belonged to the moderate nutritional risk group. Except for vitamin C, the average daily nutrient intake of the subjects was below the level of the recommended dietary allowances (RDA) for Koreans. The lower the nutritional health score, the better was their dietary intake of energy (p < .05), protein (p < .001), and zinc (p < .01). A positive relationship between their nutritional health score and body fat ratio was also observed (p < .05). Therefore, we suggest that the NSI Checklist could be used as a practical screening tool at the beginning of nutritional surveillance of the elderly in the community.

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[English]
Zinc Status and Taste Acuity of Old and Young Women: Jin Sook Yoon, Junghyun Lee, Phil Sook Park; Korean J Community Nutr 2000;5(3):484-492. Published online September 30, 2000

Abstract PDF: In an attempt to figure out the relationship between zinc status and taste acuity of old and young women, dietary zinc intake, urinary zinc excretion, and taste acuity were determined for 118 women. Zinc intake was measured by 2-day food records and food frequency method. Urinary zinc excretion was measured from urine samples collected for twenty four hours. Body fat, lean body mass (LBM), and total body water were measured by bio-impedence. Average dietary zinc intake by food record was 4.15+/-1.33mg (=35% if Korean RDA) for the old women and 5.41+/-2.76mg (=25% of RDA) for young women. When zinc intake was measured by a frequency method, the average intakes of the old and young women were 3.5+/-1.7mg 4.5+/-1.9mg, respectively. It appears that dietary zinc intake of young women was significantly higher than that of the old women. Average urinary zinc excretion of the subjects was 0.27+/-0.16mg in the elderly and 0.24+/-0.13mg in young women, which indicated a marginal zinc status. However, zinc status was not significantly different between old and young women. Correlation analysis indicated that zinc intake and urinary zinc excretion were positively related to BMI and LBM in young women. The old women (m=49) showed significantly higher taste detection thresholds than young subjects (n=47) for both sweet and salty tastes. Recognition thresholds for sodium chloride and sucrose were not significantly different between old and young women. The lower the taste thresholds for salty taste, the higher the average dietary zinc intake. However, taste perception concentration was not related to the urinary zinc excretion level.

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[English]
A Study on the Relations among Zinc Copper Metabolism, Blood Glucose, Insulin and Serum Lipids in Normal Adult Women: Seng Lue Kim, Chung Ja Sung, Mi Hyun Kim; Korean J Community Nutr 2000;5(2):152-160. Published online July 31, 2000

Abstract PDF: The purpose of this study was to investigate zinc and copper metabolism and risk factors of chronic diseases in 20 normal adults women. The daily intake, excretions in urine and feces, and serum levels of zinc and copper were determined by 24-hr food records and chemical analysis. The results were summarized as follows. mean age, body weight and BMI were 22.88 years, 54.65 kg and 21.28 kg/m2 respectively. Mean daily intakes of energy and protein were 1578.84 kcal(79% of RDA) and 52.05g (87% of RDA). The zinc and copper intake, excrestion in urine and feces were 7093.23 microgram(59% of RDA/2093.87 microgram, 203.50 microgram/39.87 microgram and 3416.41 microgram/857.62 microgram, respectively. The serum levels of fasting glucose, insulin, total cholesterol, HDL-cholesterol, LDL-cholesterol, triglyceride, zinc and copper were 76.60 mg/dl, 15.66IU/dl, 160.30 mg/dl, 50.95 mg/dl, 89.80 mg/dl, 89.79 mg/dl, 95.65 microgram/dl and 73.28 microgram/dl respectively. Dietary ratio of Zn to Cu was shown to have significant positive correlations with serum insulin, total cholesterol, LDL-cholesterol. The urinary ratio of Zn to Cu was shown to have significant positive correlations with triglyceride. The serum copper level was shown to have significant negative correlations with serum total cholesterol and LDL-cholesterol. In summary, Zn consumption of adult women in their normal diet does not meet the Zn requirement for Koreans. Also, intakes of Zn and Cu may effect the glucose metabolism and cardiovascular diseases. Therefore, to increase the Zn intake and to maintain an appropriate intake ratio of Zn to Cu, nutrition education needs to be implemented.

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[English]
A Longitudinal Study of the Iron and Zinc Intakes of Korean Infants from 1 to 3 Months-Breast-Fed vs Formula-Fed Infants: Kyungsuk Choi, Sumi Mo, Haymie Choi, Jaeok Koo; Korean J Community Nutr 1999;4(1):30-36. Published online March 31, 1999

Abstract PDF: This study was carried out to longitudinally investigate the iron and zinc intakes and correlation with growth performance of 25 male breast-and formula-fed infants from 1 to 3 months postpartum, longitudinally. There were four groups breast fed(BF) and three formula fed groups((FFM, FFN and FFP). Milk intakes and the concentration of iron and zinc from human milk and the formulas were measured. The iron content of human milk was 2.07+/-1.05(0.63~5.65) microgram/ml. The zinc content was 2.43+/-1.14(0.70~5.30) microgram/ml. Both were not significantly different among postpartum months. The average iron intake of the breast-fed and formula-fed infants was 1.6+/-0.7mg/day and 8.4+/-2.3mg/day, respectively. The iron intake of breast-fed infants was higher than previous reports. And that of formula-fed infants was higher than the RDA. The average zinc intake of the breast-fed group was 1.9+/-0.9mg/day and formula-fed infants' was 2.7+/-0.7mg/day, which was higher than the RDA. There was no correlation between these mineral intakes and the growth performance during 1 to 3 postpartyum months. So, extensive studies of the iron content of human milk and wide cross-sectional studies for establishing iron and zinc recommended dietary allowances for infants are needed.

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[English]
The Zinc Nutriture and Effect of Zinc supplementation on the Elderly Living in Ulsan: Mi suk Jeong, Hye Kyung Kim; Korean J Community Nutr 1998;3(3):389-396. Published online August 31, 1998

Abstract PDF: This study was intended to examine the zinc status and effect of zinc supplementation on the zinc nutritional status of the elderly living in the Ulsan area. The zinc intake of 207 subjects(male 97, female 110) was measured by a 24-hour dietary recall and food frequency method. Biochemical analysis were conducted from blood and urine samples to evaluate the changes of zinc nutriture with zinc supplementation. The average dietary zinc intake of subjects was 7.7+/-2.8 mg for male and 7.5+/-2.6 mg for female, which were 51.3% and 62.3% of Korean RDA respectively. The first source of zinc was cereal and grain(36%), and the second was eggs and milk group(27%). After 8 weeks of zinc supplementation, the serum zinc content was significantly increased(p<0.01), although the serum copper content was not significantly decrease. Serum HDL-cholesterol level was not significantly decreased with zinc supplementation. Serum alkaline phosphatase(ALP) activity and urinary zinc excretion were significantly increased(p<0.05). The urinary Zn/Cr was not significantly increased. It is suggested from the results that the daily zinc supplementation can be effective to improve zinc nutriture.

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[English]
Effects of Dietary Protein and Calcium Levels on Iron and Zine Balance in Young Korean Women: Kisun Nam, Kyungwon Kim, Jaoeok Koo, Haymie Choi; Korean J Community Nutr 1998;3(2):218-227. Published online May 31, 1998

Abstract PDF: No abstract available.

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[English]
A Study on the Balance of Iron and Zinc in Korean Children: In Seon Choi, Kyung Hwa Lee, Seung Ho Oh; Korean J Community Nutr 1998;3(1):12-20. Published online February 28, 1998

Abstract PDF: In this study, the food intake, feces and urine of 14 primary school age boys and girls were collected and intake and excretion of iron and zinc were measured. The boys and girls were 8-12 years old and measurement continued for four weeks during which they maintained their normal living pattern. Each boy's and girl's daily intake and excretion of iron and zinc were measured and apparent digestibility and balance were also calculated. The results are as follows. Mean daily intake of iron was 14.9+/-0.6 mg for the boys and 12.4+/-0.5 mg for the girls. Mean daily intake of zinc was 11.8+/-1.2 mg for the boys and 11.5+/-0.4 mg for the girls. Mean daily fecal loss and apparent digestibility of iron was 6.1+/-0.3 mg and 58.8+/-2.0% for the boys and 6.8+/-0.1 mg and 44.1+/-2.0% for the girls. Mean daily fecal loss and apparent digestibility of zinc was 9.3+/-0.2 mg and 14.4+/-5.1% for the boys and 9.7+/-0.4 mg and 14.3+/-4.3% for the girls. Mean daily urinary loss of iron was 1.1+/-0.1 mg and showed the positive balance of 7.86+/-0.6 mg for the boys and 0.5+/-0.1 mg and showed the positive balance of 5.14+/-0.4 mg for the girls. Mean daily urinary loss of zinc was 0.5+/-0.1 mg and showed the positive balance of 1.03+/-0.6 mg for the girls.

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[English]
Zine Status of Adult Female in the Taegu Region as Assessed by Dietary Intake and Urinary Excretion: Hyun Mee Oh, Jin Sook Yoon; Korean J Community Nutr 1997;2(1):52-62. Published online February 28, 1997

Abstract PDF: This study was intended to examine the zinc status of free-living adult women living in the Taegu region. Zine intake of 102 female subjects was measured by food frequency method for 3 consecutive days. Urinary zine was assessed from urine samples collected fir twenty four hours. Average dietary zinc intake of adult female subjects using food record was 5.9+/-1.8 mg which was 49% of Korean RDA. When zine intake by frequency method was higher than by food record. Average urinary zine intake by frequency method was higher than that by food record. Thus, it appeared that zinc intake by frequency method was higher than that by food record. Average urinary zinc excretion of 102 adult female subjects was 0.28+/-0.16 mg, which belonged to marginal zinc deficiency range. Fifty nine of 102 subjects showed marginal zinc deficiency as assessed by urinary zinc excretion. If we compare the zinc status of adult female subjects by age group, zinc intake in the 50s was significantly higher than any other age groups. However, there were no significant differences in zinc status according to BMI groups and BMI groups. Significant correlations were found between zinc intake and energy, protein, carbohydrate and fat intake. Based on dietary zinc intake and urinary zinc, we concluded that zinc status of adult female living in the Taegu region is marginally deficient.

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