Korean Journal of Community Nutrition

Volume 25(4); August 2020

Research Articles

[English]
A study on the Utilization and Satisfaction of Commercially available Lunchbox by Dietary Lifestyle: Hyosuk Kim, In-Joon Huh, Sim-Yeol Lee; Korean J Community Nutr 2020;25(4):267-279. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.267

Objective
This study investigated the utilization and satisfaction of lunchbox by considering the dietary lifestyle of the consumer, in order to refine the purchasing behavior of adults with experience in using lunchboxes, and to provide basic data for efficient menu configuration and direction towards improvement.
Methods
A total of 600 adults in Seoul and Gyeonggi-do answered a self-administered questionnaire designed to investigate general characteristics, utilization, menu preference, satisfaction, prospection, and improvement of lunchbox, according to the dietary lifestyle.
Results
The study subjects were classified into 5 groups: ‘taste seeking group’, ‘safety seeking group’, ‘health seeking group’, ‘economic seeking group’ and ‘convenience seeking group. Considering purchase value of the lunchbox, the ‘taste seeking group’ had a high utilization rate (35.1%) for prices less than 4,000 won (p < 0.05). Lunchboxes were mainly purchased at the lunchbox store (43.3%) and convenience store (37.7%). The important factor that contributed to purchasing a lunchbox was taste (61.3%), which was highest in the ‘taste seeking group’ (p < 0.01). The ‘health seeking group’ showed the highest preference for the low-salt diet lunchbox menu (26.0%) (p < 0.05). The satisfaction of ‘health seeking groups’ was lowest when considering addition of condiments (2.34%), origin of ingredient (2.59%), and provided calorie (2.81%) (p < 0.05). The overall response indicated future use of the lunchbox (69.6%) (p < 0.01); 35.8% respondents recommended the purchase of lunchbox, where convenience of purchase was the highest factor contributing to recommendation (50.2%) (p < 0.05).
Conclusions
Taken together, our results indicate that taste was emphasized in every group purchasing the lunch box. Convenience of purchase was the highest factor contributing to satisfaction, which was relatively low when considering addition of condiments, nutrition and origin of ingredients. We propose that it is necessary to improve the development of various menus for increasing satisfaction by selecting the right ingredients contributing to good health of the consumer.

Citations

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A Study on the Selection Attributes of Frozen Mandu (Korean Dumpling) for Adults in the Jeonbuk Area Using Conjoint Analysis
Da Eun Gong, Sun A Choi, Jeong Ok Rho
Journal of the Korean Society of Food Science and Nutrition.2024; 53(3): 297. CrossRef
Study on the Eating Out Behavior and the Status of Meal Delivery and Take-Out Consumption according to the Food-related Lifestyles of Adolescents : Using the Consumption Behavior Survey for Food in 2020
Eun Jung Lee, Hyeon Min Yang, Yeong Ju Lee, Sun A Choi, Jeong Ok Rho
Journal of the East Asian Society of Dietary Life.2024; 34(4): 284. CrossRef
Comparison of Eating Habits and Behaviors of Young Single-Person Households based on Food-Related Lifestyle
Dokyung Kim, Sim-Yeol Lee
Korean Journal of Health Promotion.2023; 23(3): 117. CrossRef
Beef Consumption Behavior amongst Korean Women: A Study Based on the Demographic Characteristics and Food-Related Lifestyle
Kyung-Ran Lee, EunJung Lee, Jung-Tak Lee, Jin A Jang
Journal of the Korean Society of Food Science and Nutrition.2023; 52(3): 323. CrossRef
How Does Adolescents’ Usage of Social Media Affect Their Dietary Satisfaction?
Harry Jeong, Kwangsoo Shin
International Journal of Environmental Research and Public Health.2022; 19(6): 3621. CrossRef
A Franchise Hamburger Menu for University Students Determined by Identifying Selection Attributes Using Conjoint Analysis
Yu-Ni Choi, Sung-Suk Chung, Jeong-Ok Rho
Journal of the East Asian Society of Dietary Life.2022; 32(4): 250. CrossRef
Studies of Selection Attributes for Lunch Boxes (Dosirak) Using Conjoint Analysis among Single Men
A Reum Han, Sung Suk Chung, Jeong Ok Rho
Journal of the Korean Society of Food Science and Nutrition.2021; 50(8): 884. CrossRef
E-commerce Food Purchases by Adult Women according to their Household Types
Yu-Jin Park, Yu-Mi Kim, Mi-Kyeong Choi
Korean Journal of Community Nutrition.2020; 25(6): 464. CrossRef

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[English]
Evaluation of Nutritional Content in Convenience Store Lunchboxes by Meal Type, Price, and Store Brand: Jin-Seon Park, Young-Hee Han, Taisun Hyun; Korean J Community Nutr 2020;25(4):280-290. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.280

Abstract PDF

Objective
This study investigated the menu and nutritional contents of convenience store lunchboxes, and evaluated the nutritional content by meal type, price, and store brand.
Methods
In September 2019, 93 convenience store lunchboxes from the top five franchise stores were purchased. Relevant information on price, food weight, food ingredients, cooking methods, and nutrition labeling were subsequently collected. Nutritional content was evaluated based on the daily value (DV) and Index of Nutritional Quality (INQ), and energy contribution of carbohydrate, protein, fat, saturated fat and sugar was compared with the recommended range.
Results
Most lunchboxes included the food groups; grains/starches, meats/fish/eggs/ legumes, and vegetables. However, none provided fruits, and only a few lunchboxes provided milk/milk products. Stir-frying, deep-frying, and pan-frying were the most frequent methods of cooking. The average energy content of the lunchboxes was 736.6 kcal, whereas the average contents of protein, fat and saturated fat were higher than 40% of the DV, and sodium content was 66.8% of the DV. The contents of most nutrients in traditional type lunchboxes were higher, as compared to nutrients in onedish type lunchboxes. Considering pricing of lunchboxes, protein and sodium contents were higher in the higher-priced lunchboxes as compared to lower-priced lunchboxes, but there were no differences in the INQs. The contents of energy, protein, fat, saturated fat, and cholesterol significantly differed by brand.
Conclusions
Our results indicate that convenience store lunchboxes contain high levels of protein, fat, saturated fat, and sodium. The nutritional contents differed by meal type, price, and store brand, and higher price did not imply higher nutritional quality. We propose the need to educate consumers to check nutrition labels and purchase appropriate lunchboxes. Manufacturers also need to make efforts to reduce the amounts of fat, saturated fat, and sodium, and not provide protein in excess.

Citations

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Evaluation of Nutritional Quality of Convenience Store Meal Boxes according to Store Company and Meal Price
Changgyu Cho, Youngmin Nam, Hye-Jong Yoo
Korean Journal of Community Nutrition.2022; 27(2): 105. CrossRef
Factors Influencing Convenience Food Choices based on the Health Consciousness of Chinese Students in South Korea
SongLin Bai, Youngmi Lee, Kyounghee Song, Yujin Lee
Journal of the East Asian Society of Dietary Life.2022; 32(3): 169. CrossRef
Studies of Selection Attributes for Lunch Boxes (Dosirak) Using Conjoint Analysis among Single Men
A Reum Han, Sung Suk Chung, Jeong Ok Rho
Journal of the Korean Society of Food Science and Nutrition.2021; 50(8): 884. CrossRef

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[English]
Dietary Life of Chinese International Students according to the Frequency of University Foodservice Use in Korea: Yan Cui, Hye-Jong Yoo, Injoo Choi, Jihyun Yoon; Korean J Community Nutr 2020;25(4):291-302. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.291

Abstract PDF

Objective
This study investigated the current use of university foodservice among Chinese international students in Korea, focusing on the relationship between the frequency of university foodservice use and their dietary life.
Methods
An online survey was conducted on 452 Chinese international students from February 6 to 12, 2020. The respondents were classified into “the Low-frequency group” (< one time/week; n=144), “the Mid-frequency group” (one-two times/week; n=133), and “the High-frequency group” (≥three times/week; n=175) according to their frequency of using university foodservice. The dietary life was compared among the three groups. Binominal logistic regression models were constructed to determine the associations between the frequency of university foodservice use and the changes in dietary life.
Results
More than 2/3 (68.1%) of the respondents used the university foodservice at least once per week. Chinese international students who were males and Han Chinese people, lived on campus, had stayed longer in Korea, and had no cooking facilities tended to use the university foodservice more often. The level of satisfaction with the university foodservice was not high (3.52 out of 5-points). Only 20% ate meals three times per day, and only 22% ate breakfast almost every day. The frequencies of overeating and skipping meals increased after studying in Korea. The frequency of university foodservice use, along with the length of residence in Korea, was associated with these negative changes in dietary life. Overeating (OR=2.11) and skipping meals (OR=1.79) were more likely to increase after studying in Korea in the Mid-frequency group than in the High-frequency group.
Conclusions
The frequency of university foodservice use was associated with the dietary life of Chinese international students in Korea. A high frequency (i.e. ≥three times/week) of using university foodservice may positively affect the dietary life of Chinese international students in Korea.

Citations

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Comparison of Sodium-Related Dietary Behavior and Low-Salt Dietary Attitude Based on the Gender and Salty Taste Assessment of Chinese International Students in the Jeonbuk Area
Qi Li, Ji Eun Lee, Jeong Ok Rho
Journal of the East Asian Society of Dietary Life.2021; 31(2): 91. CrossRef

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[English]
Qualitative Study of Compliance with Nutritional Management in Colorectal Cancer Patient Undergoing Chemotherapy: Heejung Park, Hyonson Kil, Wookyoun Cho; Korean J Community Nutr 2020;25(4):303-316. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.303

Abstract PDF

Objective
The nutritional status of cancer patients undergoing chemotherapy is closely related to the compliance of nutrition education. However, as chemotherapy is conducted repeatedly, compliance with nutrition management is lowered, leading to malnutrition. Malnutrition is related directly to the quality of life after surgery in cancer patients. Therefore, this study examined the factors related to compliance with nutrition management during chemotherapy.
Methods
In this study, five subjects with colorectal cancer undergoing adjuvant chemotherapy were interviewed in-depth using the Giorgi study method. The contents of the nutrition education visits and in-depth interviews were transcribed in the language of the subject after recording, and the appropriateness of the data was improved by reflecting the subject’s actions and facial expressions.
Results
After conducting the in-depth interviews for each subject, the experience of the subject’s diet and adjuvant chemotherapy was drawn into two domains, six elements, and 26 sub-elements. In the cognitive domain, the patients experienced physical and psychological changes, and the need for nutrition management was recognized by analyzing the dietary causes of the diseases. In the domain of practice, a knowing-doing gap was formed, unlike the patient’s will. Factors that inhibited compliance with nutritional management included digestive problems, sensory changes, loss of appetite, and social interaction stress.
Conclusions
Dietary management is very important for patients receiving periodic anticancer therapy, and step-by-step training and personal monitoring based on the chemotherapy order is necessary to maintain the patient’s will and social and environmental support.

Citations

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Effects of Continuous Nutrition Care on Nutritional Status and Dietary Habits of Patients With Colorectal Cancer Receiving Adjuvant Chemotherapy After Surgery
Jina Son, Ha I Kang, Eun young Jung, Hae won Ryu, Kyung-Ha Lee
Clinical Nutrition Research.2023; 12(2): 99. CrossRef

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[English]
Validity of Estimating Sodium Intake using a Mobile Phone Application of 24-hour Dietary Recall with Meal Photos: Seo-Yoon Kim, Sang-Jin Chung; Korean J Community Nutr 2020;25(4):317-328. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.317

Abstract PDF

Objective
The objective of this study was to verify the validity of a mobile phone application (app) that applies a 24-hour dietary recall with meal photos, as a means of being a more accurate method of estimating dietary sodium intake.
Methods
Of the 203 subjects enrolled, 172 subjects (84 males and 88 females) were selected for the final analysis, excluding those with an intake less than 500 kcal and urine output less than 500 ml. Dietary sodium assessment methods used for comparing with the 24-hour urinary sodium excretion are as follows: 1) face-to-face 24-hour dietary recall, 2) 24-hour dietary recall using the mobile app, 3) face-to-face 24-hour dietary recall considering liquid intakes from soup, stew, water kimchi and noodle, etc (liquid-based dishes), 4) 24-hour dietary recall using the mobile app considering liquid intakes from liquid-based dishes, and 5) food frequency questionnaire. Repeated ANOVA with Bonferroni method was used for comparing the average sodium intake, and Pearson’s correlation was applied to correlate the methods used.
Results
In women, no significant difference was observed in the average sodium intake between all methods. Moreover, analysis in men and total adults revealed no significant difference between the 24-hour urinary sodium secretion, and 24-hour dietary recall using the app and 24-hour dietary recall using the app considering liquid intakes. Sodium intake by food frequency questionnaire was significantly different when compared with the intake determined from 24-hour urinary sodium excretion. Sodium intake from all methods (except food frequency questionnaire) significantly correlated with values obtained from 24-hour urine sodium excretion.
Conclusions
Results of this study validated a mobile phone app using a 24-hour dietary recall with meal photos to better estimate dietary sodium intakes. It is believed that further studies in the future will enable the application as a tool to more accurately determine sodium intake.

Citations

Citations to this article as recorded by

Dietary Sodium and Fluid Restriction for Patients with Heart Failure
Eloisa Colin-Ramirez, Amitai Segev, Meghan Rozmahel, Justin Ezekowitz
Current Treatment Options in Cardiovascular Medicine.2024; 26(12): 347. CrossRef
Comparison between 24-hour diet recall and 24-hour urine collection for estimating sodium and potassium intakes and their ratio among Korean adults
Taisun Hyun, Mi-Kyeong Choi, Young-Ran Heo, Heekyong Ro, Young-Hee Han, Yeon-Kyung Lee
Nutrition Research and Practice.2023; 17(2): 284. CrossRef
Validity of Interviewer-Administered 24-h Dietary Recalls in Older Korean Women: A Pilot Study
Seunghee Kim, Clara Y. Park
Nutrients.2023; 15(7): 1757. CrossRef

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[English]
Evaluation of Nutritional Status of Vitamins and Minerals According to Consumption of Dietary Supplements in Korean Adults and the Elderly: Report Based on 2017 Korea National Health and Nutrition Examination Survey data: Ji-Myung Kim; Korean J Community Nutr 2020;25(4):329-339. Published online August 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.4.329

Abstract PDF

Objective
This study was undertaken to evaluate the intake of vitamins and minerals from dietary supplements (DSs) in Korean adults and elderly.
Methods
Data for this study was generated from the 2017 Korea National Health and Nutrition Examination Survey (KNHANES). We analyzed 4,204 individuals aged 19 years and older (2,579 users and 1,625 non-users). The survey included 24-h recall questions on food and DS intakes, as well as questions on DS use over the past year. The nutrient DSs evaluated were calcium, phosphorus, iron, vitamin A, thiamin, riboflavin, niacin, and vitamin C. Total nutrient intakes were obtained by combining nutrient intakes of foods and DSs consumed by each subject.
Results
Most micronutrient intakes from food (except for thiamin) in adult users, and the four micronutrient intakes (iron, vitamin A, vitamin B₂ and vitamin C) in elderly users, were significantly higher than values obtained in non-users. For total intake of nutrients and DSs, both adult and elderly users had a significantly higher intake than non-users. While proportions below Estimated Average Requirements for all micronutrients by adding respective DSs in users were significantly reduced in adults and elderly as compared to non-users, the proportions of above Tolerable Upper Intake Levels for calcium and vitamin A in adults, and vitamin A in elderly, were significantly increased. In the total subjects examined, consumption of DSs was associated with lower odds ratios of undernutrition of micronutrients, and with higher odds ratios of overnutrition of calcium, iron, and vitamin A, as compared to non-users of DSs.
Conclusions
Although DSs consumption by adults and the elderly improves the micronutrient status, it also increases the risk of excessive intake of certain vitamins and minerals.

Citations

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Folate intake in Korean adults: analysis of the 2016–2018 Korea National Health and Nutrition Examination Survey with newly established folate database
Eun-Ji Park, Inhwa Han, Kyoung Hye Yu, Sun Yung Ly
Journal of Nutrition and Health.2024; 57(4): 418. CrossRef
Effect of Dietary Supplements on Vitamin and Mineral Intake Among Koreans: Data From the 2018-2020 Korea National Health and Nutrition Examination Survey
Moon Yeong Hwang, Jiyoun Hong
Food Supplements and Biomaterials for Health.2023;[Epub] CrossRef
Estimated dietary vitamin D intake and major vitamin D food sources of Koreans: based on the Korea National Health and Nutrition Examination Survey 2016–2019
Ki Nam Kim, Jung-Sug Lee, Jee-Seon Shim, Mi Ock Yoon, Hyun Sook Lee
Nutrition Research and Practice.2023; 17(3): 451. CrossRef
A Study on the Dietary Behavior of Korean Adults: Focus on Dietary Supplement Intake, Household Size, and COVID-19
Jinkyung Choi
Korean Journal of Community Nutrition.2022; 27(6): 468. CrossRef

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