Korean Journal of Community Nutrition

Research Article

[Korean]
Evaluation of Nutritional Quality of Convenience Store Meal Boxes according to Store Company and Meal Price: Changgyu Cho, Youngmin Nam, Youngmin Nam, Hye-Jong Yoo, Hye-Jong Yoo; Korean J Community Nutr 2022;27(2):105-120. Published online April 30, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.2.105

Objectives
This study evaluated nutritional quality of convenience store meal boxes according to store company and meal price.
Methods
In May 2020, 71 meal boxes from five major convenience store companies were collected. Respective weights of all dishes and food ingredients included in each meal box were measured with a digital scale. Information on nutritional contents was collected from nutrition fact panels on packages. Food group patterns, dietary diversity scores (DDS), and dietary variety scores (DVS) were analyzed. Nutritional contents, i.e., amounts of energy, protein, and sodium, and percentages of energy from carbohydrate, sugar, fat, and saturated fat were compared with respective standards based on the 2020 Dietary Reference Intakes for Koreans. Comparison was made among five companies (Company A, B, C, D, E) and three price groups ( ≤4,200 won, ≥4,300 and ≤4,500 won, ≥4,600 won). Multiple regression analyses were conducted to examine the difference of nutritional contents according to company and price, respectively while holding the other variable constant.
Results
DDS, but not DVS, significantly differed among companies. The percentages of meal boxes meeting the nutritional standards of sodium significantly differed among companies; the percentage was highest in companies B (75.0%) and C (73.3%). “Company” was associated with amount of energy, protein, and sodium, and percentage of energy from saturated fat. “Price” was associated with the amount of energy and percentage of energy from carbohydrate. The average number of satisfied standards was highest in companies B (5.0) and C (4.0). About two-thirds of the meal boxes provided less amount of energy than the standard; the percentage of such meal boxes was highest in meal boxes with price of 4,200 won or lower.
Conclusions
There were significant differences in the nutritional quality of meal boxes according to “company”. Meanwhile, higher-priced meal boxes did not necessarily ensure better nutritional quality.

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Original Articles

[English]
Study on Middle and High School Students' Use of Convenience Foods at Convenience Stores in Incheon: Seul Ki Lee, Mi Kyeong Choi, Mi Hyun Kim; Korean J Community Nutr 2019;24(2):137-151. Published online April 30, 2019; DOI: https://doi.org/10.5720/kjcn.2019.24.2.137

Abstract PDF PubReader

OBJECTIVES
The rapidly changing dietary environment requires a study that addresses the status of middle and high school students regarding their consumption of convenience food sold at convenience stores.
METHODS
This study examined adolescents' lifestyle patterns, dietary habits, and status of consuming convenience food at convenience stores. A total of 659 students (329 middle school students and 330 high school students) in Incheon participated in this questionnaire survey.
RESULTS
The mean age of the subjects was 13.7 years for the middle school students, and 16.6 years for the high school students. The gender and grade distributions in the middle and high school students were similar. The middle school students reported that they spent more time using electronic devices (p<0.001) or watching TV (p<0.001) than high school students. More than 60% of middle and high school students consumed convenience food at convenience stores without statistical difference between the two groups. The main reason for consuming convenience food from convenience stores was its convenience followed by taste in both groups. Despite the high frequency of consuming convenience food, the students rarely checked the nutrition labels at the time of purchase. On the other hand, they were still most concerned about the nutritional value of the convenience foods when they consumed convenience foods. The most frequently consumed convenience food was ramyon in both groups. Significant positive correlations were observed between the frequency of consuming convenience food at convenience stores and lifestyle factors for the middle school students, including monthly allowance, time for using electronic devices, and number of private lessons. For the high school students, however, the only monthly allowance had a significant positive correlation with the consumption.
CONCLUSIONS
Adolescents are increasingly exposed to convenience foods and relevant nutritional issues are a concern. Therefore, a dietary environment that is adequately formed for the healthy development of youth as well as systematic nutrient education that is appropriately designed for both middle and high school students is required.

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[English]
Dietary Habits and Perception Toward Food Additives according to the Frequency of Consumption of Convenience Food at Convenience Stores among University Students in Cheongju: Munkyong Pae; Korean J Community Nutr 2016;21(2):140-151. Published online April 30, 2016; DOI: https://doi.org/10.5720/kjcn.2016.21.2.140

Abstract PDF PubReader

OBJECTIVES
This study was performed to examine the consumption patterns of convenience food at convenience stores, dietary habits, and perception as well as knowledge of food additives among university students.
METHODS
Subjects were 352 university students in Cheongju, Korea, and data was collected by a self-administered questionnaire. They were divided into three groups according to the frequency of consumption of convenience food at convenience stores: 79 rare (â‰¤ 1 time/month), 89 moderate (2-4 times/month) and 184 frequent (â‰¥ 2 times/week).
RESULTS
More subjects from the frequent consumption group lived apart from parents (p<0.001) and possessed more pocket money (p<0.01). Frequent consumption group consumed noodles, Kimbab, and sandwich & burger significantly more often (p<0.001, respectively) than others. In addition, frequent consumption of convenience foods at convenience stores was associated with frequent breakfast skipping (p<0.05), irregular meal time (p<0.01), snacking (p<0.05), and eating late night meal (p<0.001). More from the rare consumption group had heard about food additives previously compared to the frequent consumption group (79.7% vs. 63.6%, p<0.01). Frequent consumption group showed significantly higher score than did the rare consumption group for the following questions: monosodium glutamate is harmful to your health (p<0.05), food additives are necessary for food manufacturing (p<0.005), food additives need to be labeled on products (p<0.05), there is no food additive at all if labeled as no preservatives, no coloring, and no added sugar (p<0.05). There was a significant difference in degrees of choosing products with less food additives depending on the consumption pattern.
CONCLUSIONS
Our results provided a better understanding of the factors associated with frequent consumption of convenience foods at convenience stores among university students and will be useful to develop a nutrition education program for those who are more prone to consume convenience foods.

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[English]
Survey on Present Use and Future Demand for the Convenience Food in the Elderly Group: Ji Young Park, Ji Na Kim, Wan Soo Hong, Weon Sun Shin; Korean J Community Nutr 2012;17(1):81-90. Published online February 29, 2012; DOI: https://doi.org/10.5720/kjcn.2012.17.1.81

Abstract PDF PubReader

This study is to research the use and the demand of the elderly generation that pursue economic ability and active lifestyle. The composition of the meals were "homemade meals" 65.3%, "homemade & convenience meals" 26.7% overall. For the "never miss a meal" category, 70~74 years old was 48.3%, over 80 years old was 60.0%. The elderly under 70 years old showed a high frequency in the use of alternative meals (p < 0.05) and the elderly with higher education used the alternative meals more frequently (p < 0.01). The rice-cakes, bread, tuna cans, Korean side-dishes, beverages, meat, cup-noodles and seafood as alternative meals are in the order of most frequency. Also, 96.0%, 59.0% and 46.5% of the elderly had experience in using "Ready to eat (RTE)", "Ready to heat (RTH)" and "Ready to cook (RTC)". The oldest group surveyed, the elderly at the age of 80 years old and above showed lower preference for "completely cooked state" but showed highest results in the "half-cooked state". This shows the difference between people's perception and the behavior that showed high frequency of 96.0% in the experience with "RTE". This can be inferred that the elderly needs the development of convenience food that is moderately packaged according to the newer lifestyle where the elderly live independent from their children. Moreover, there is a higher demand in the healthy convenience food, which means that there is a need for development in the quality of the convenience food that will allow more faith in convenience food by the elderly.

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Journal of the Korean Society of Food Science and Nutrition.2015; 44(3): 370. CrossRef
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Journal of the Korean Society of Food Science and Nutrition.2015; 44(12): 1873. CrossRef
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[English]
A Study of the Dietary Habits, the Nutritional Knowledge and the Consumption Patterns of Convenience Foods of University Students in the Gwangju Area: Kyung Hee Kim; Korean J Community Nutr 2003;8(2):181-191. Published online April 30, 2003

Abstract PDF: The purpose of this study was to investigate the dietary habits, the nutritional knowledge and the consumption patterns of convenience foods of 618 university students located in the Gwangju area, from November twentieth to November thirtieth, 2002. The subjects included 301 males (48.7%) and 317 females (51.3%). This survey was conducted using a self-administered questionnaire. The percentage of students who were underweight, normal and overweight based on their body mass index (BMI) was 3.7, 88.0 and 8.3 for the males, and 29, 71 and 0 for the females, respectively. Most students (73.8%) skipped breakfast. This was because of lack of time (65.1%) of the cases. Self-reported eating habit problems were eating irregular meal (52.4%), overeating (21%), prejudiced meal (12.4%) and skipping meal (7.4%). The type of favorite snack was biscuit (31.9%) and cup Ramyon (31.9%). The rates of alcohol drinking in male and female students were 88.0% and 85.8% respectively, and the rates of smoking were 35.9% and 2.8% respectively. Males ate frequently cup Ramyon (2.08 +/- 2.95), fries (pork cutlet, fried potato)(1.91 +/- 2.58), Ramyon (1.81 +/- 3.00) and kimbab (1.70 +/- 3.17) more frequently, while females ate kimbab (2.25 +/- 3.26), cup Ramyon (1.89 +/- 2.09), fries (pork cutlet, fried potato)(1.77 +/- 2.67), Ramyon (1.46 +/- 1.1.95) and fish paste 1.45 +/- 2.22) more frequently. The nutritional knowledge score was higher in females than in males. The mean consumption patterns of convenience foods of students living in home were lower than that of students living in dormitory and boarding w/cooking. When the amount of pocket money available and the body mass index increased and the nutritional knowledge level was low, the mean consumption of convenience foods increased. The mean consumption of convenience foods correlated negatively with nutritional knowledge (p < 0.01). Therefore, nutritional education for university students is needed so as to improve their health and nutritional education program should be developed to meet the various needs of these students.

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[English]
A Survey of the Consumption of Convenience Foods: Eun Young Jung, Young Hee Lim, Myung Soon Park, Mi Won Kim; Korean J Community Nutr 2002;7(2):149-155. Published online April 30, 2002

Abstract PDF: No abstract available.

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