The purpose of this study is to know about the consumption patterns of functional foods and their associated factors for contributing to the promotion of healthiness on Gwangju residents. The results obtained are summarized as follows: in terms of age, 35.9% of men (n=78) and 52.3% of women (n=128) are found in the age range of $45{\sim}54$ which comprises the highest portion of age distribution. 49.5% of subjects had college education or more. In the occupation category, 33.3% of the men had business job positions, and 39.8% of women were in the unemployed (housewife) category. Stress relief was the most important factor to maintain good health. 76.2% of the subjects have experience in consuming functional foods. The main reason for taking functional foods was to maintain health. Information and reliability of effectiveness were considered when selecting functional foods. Purchasing functional foods was motivated by family members, relatives, and/or the subjects themselves. Functional foods were mainly purchased from pharmacies or health food stores. Regular exercise, drinking, periodical medical checkups, and eating score all are taken into consideration with the consumption of functional foods.77.9% of subjects recognized functions for functional foods purchased. 18.8% of subjects experienced side effects after intaking functional food. Therefore, functional foods should be managed by the government and nutrition education for consumers should be required to encourage them to choose functional foods more satisfactorily and safely.
Journal of Korean Home Economics Education Association
/
v.3
no.1
/
pp.95-112
/
1991
This study was conducted to identify a problem of Industrial Arts$.$Home Economics subjects, and to improve its curriculum contents. In order to have accomplished the above objectives, the experts were gained about ideas and methods about organization of the curriculum contents of Industrial Arts$.$Home Economics subjects. In second questionnaire, based on the curriculum contents of Industriasl Arts$.$Home Economics subjects draw from the above review of literatures, the opinions of the experts were investigated about review of literatures, the opinions of the experts were investigated about the selection of the contents of Home Economics, Industrial Arts, respectively. The selected data in first questionnaire was manipulated by the frequency and percent. The curriculum contents in second questionnaire was selected above the sum total 80 in Home Economics subjects and above the sum total 61 in Industrial Arts subjects. The distinction of curriculum contents selected by the each domain were as follows. (1) The daily life as a consumer and the importance of home management were emphasized in the curriculum contents selected in the domains of consuming and management. (2) The vocational investigation, the course education, and the development of the young generation were emphasized in the curriculum contents selected in the domains of the family living and human development. (3) The basic Knowledge of nutrition and cooking and the contents related to the food choice were emphasized in the curriculum selected in the nutrition and food. (4) The choice and care of clothing a proper personal appearance, and the contents related to the machinery and tools were emphasized in the curriculum contents selected in the clothing and textiles. (5) The economical aspects of housing, the contents of the reasonable housing choics, and the contents for vital skills were emphasized in the housing and instruments.
Recently, local foods have drawn significant attention due to their intrinsic merits. Such foods not only have commercial potential, but also cultural value. Therefore, local foods must be well-maintained and fostered, and a comprehensive plan to develop them must be devised. In this aspect, various factors such as dietary attitudes, perceptions and concerns affecting their development should be considered. The present study was designed to investigate via survey the dietary attitudes, perceptions and concerns towards local foods among married women in Jeollabuk-do. The number of subjects was 434. According to the results, the highest frequency for consuming local foods was '1~3 times/month' for all ages. For the number of local foods subjects had ever tried, '7~8' was the highest overall with 36.8%, followed by '5~6', '3~4', '9~10', and '0~2' with 27.4%, 17.9%, 10.3% and 7.6%, respectively. However, there was a statistically significant difference according to age. The higher the person’s age, the higher the number of local foods they had tried. A similar pattern was shown in the number of local foods subjects had ever cooked. For those in their 20s and 30s, the highest number was '0~2', with 70.8% and 53.0%, respectively, while for those in their 40s the highest number was '3~4' with 38.5%, and for those above 50s it was '5~6' with 31.4%. Most of the subjects realized the need to advance the development of local foods. There were differences among the subjects for certain aspects concerning progression and development, opinions on the major drawbacks of local food development items served more often at home, and different views by age on taste modifications according to modern concepts. From this study, it can be concluded that the utilization of local foods increases with age, and the view that local food development should be based on the recovery and/or maintenance of original tastes becomes more prevalent with age.
The purpose of this study was to examine bowel habits, dietary habits, and nutrient intake of constipated adults, and the effects of prune products on relieving constipation symptoms. Fifty one adults with self-reported constipation (mean age 23 years, range 19-41 years, 10 males and 41 females) participated in this study. After a baseline survey on bowel habits and dietuy habits, participants were asked to consume at least 50 g of prune and 200 ml of prune juice per day during a 4-week period in addition to usual diet. Nutrient intake was estimated by a 24 hour recall at the baseline and once every week by diet records during the intervention. Data were analyzed after classifying the subjects into mild constipation group and severe constipation group by the severity of the symptoms. During the intervention, the subjects with mild constipation consumed 56 g of prunes (about 5.6 fruits) and 200 ml of prune juice, and the subjects with severe constipation consumed 59 g of prunes (about 5.9 fruits) and 207 ml of prune juice. Average intakes of energy, dietary fiber and water of the subjects in the mild constipation and severe constipation group increased during the intervention compared to the baseline. Average dietary fiber intake of the mild constipation and severe constipation groups significantly increased from 12.5 g and 11.6 g at the baseline to 18.5 g and 16.8 g after consuming prune products, respectively. These changes were accompanied by an increase in the number of bowel movements, a decrease of defecation time, a change to a softer stool consistency, and a decrease of abdominal pain during defecation. Seventy two subjects answered that prune products were effective to improve their overall constipation symptoms. Our data show that supplementation of prune products is effective to provide energy, dietary fiber and water, and to relieve constipation symptoms for constipated adults.
BACKGROUND/OBJECTIVES: Despite the importance of consuming sufficient amounts of vegetables, daily vegetable intake among adolescents in Korea is lower than the current dietary recommendation. The objective of this study was to examine determinants affecting vegetable preference in order to suggest a stage-tailored education strategy that can promote vegetable consumption in adolescents. SUBJECTS/METHODS: Adolescents (n = 400, aged 16-17 years) from two high schools participated in a cross-sectional study. Survey variables were vegetable preference, the social cognitive theory (SCT) and stages of change (SOC) constructs. Based on vegetable preference, subjects were classified into two groups: a low-preference group (LPG) and a high-preference group (HPG). SOC was subdivided into pre-action and action/maintenance stages. To compare SCT components and SOC related to vegetable preference, chi-squared and t-tests, along with stepwise multiple-regression analysis, were applied. RESULTS: In the LPG, a similar number of subjects were classified into each stage. Significant differences in self-efficacy, affective attitudes, and vegetable accessibility at home and school were detected among the stages. Subjects in the HPG were mainly at the maintenance stage (81%), and there were significant differences among the stages regarding self-efficacy, affective attitudes, and parenting practice. In the predictions of vegetable preference, self-efficacy and parenting practice had a significant effect in the "pre-action" stage. In the action/maintenance stage, outcome expectation, affective attitudes, and vegetable accessibility at school had significant predictive value. In predicting the vegetable preference for all subjects, 42.8% of the predictive variance was accounted for by affective attitudes, self-efficacy, and vegetable accessibility at school. CONCLUSION: The study revealed that different determinants affect adolescent vegetable preference in each stage. Self-efficacy and affective attitudes are important determinants affecting vegetable preference. Additionally, school-based nutrition intervention that focuses on enhancing affective attitudes, self-efficacy, and vegetable exposure may constitute an effective education strategy for promoting vegetable consumption among adolescents.
BACKGROUND/OBJECTIVES: The glycemic index (GI) is a measure of the postprandial glucose response (PPGR) to food items, and glycemic load (GL) is a measure of the PPGR to the diet. For those who need to maintain a healthy diet, it is beneficial to regulate appropriate levels of blood glucose. In reality, what influences the meal GI or GL depends on the macronutrient composition and the physical chemistry reactions in vivo. Thus, we investigated whether different macronutrients in a meal significantly affect the PPGR and the validity of calculated GI and GL values for mixed meals. SUBJECTS/METHODS: 12 healthy subjects (6 male, 6 female) were recruited at a campus setting, and subjects consumed a total of 6 test meals one by one, each morning between 8:00 and 8:30 am after 12 h of fasting. PPGR was measured after each consumed meal and serial finger pricks were performed at indicated times. Test meals included 1) 68 g oral glucose, 2) 210 g rice, 3) rice plus 170 g egg white (RE), 4) rice plus 200 g bean sprouts (RS), 5) rice plus 10 g oil (RO), and 6) rice plus, egg white, bean sprouts, and oil (RESO). The incremental area under the curve (iAUC) was calculated to assess the PPGR. Mixed meal GI and GL values were calculated based on the nutrients the subjects consumed in each of the test meals. RESULTS: The iAUC for all meals containing two macronutrients (RS, RO, or RE) were not significantly different from the rice iAUC, whereas, the RESO iAUC ($2,237.5{\pm}264.9$) was significantly lower (P < 0.05). The RESO meal's calculated GI and GL values were different from the actual GI and GL values measured from the study subjects (P < 0.05). CONCLUSIONS: The mixed meal containing three macronutrients (RESO) decreased the PPGR in healthy individuals, leading to significantly lower actual GI and GL values than those derived by nutrient-based calculations. Thus, consuming various macronutrient containing meals is beneficial in regulating PPGR.
This study conducted a survey to analyze awareness, preferences, and the current state of consuming environmentally friendly organic food while eating-out in 435 adults aged 20 and above in Daegu, Korea. Most subjects (95%) showed awareness of environmentally friendly organic food, and 88.5% of subjects answered environmentally friendly organic food is 'needed'. The percentage of eating out for families was 58.9%, and 49.0% of subjects said they eat out one to three times per month on average. In addition, subjects preferred a price range between 10,000 and 20,000 won per person when eating out, and they mostly favored Korean restaurants when ordering environmentally friendly organic food. Analysis of awareness of environmentally friendly organic food showed that among 'health' factors, 'environmental' factors, 'social' factors, and 'dietary essential' factors, 'health' factors showed the highest percentage for awareness. A survey on preferred foods by gender showed that both genders preferred vegetables the most. The results show that subjects in their 20s and 30s favored vegetables and fruits while subjects in their 40s preferred vegetables and grain animal products. Analysis of preferred types of environmentally friendly organic foods showed that men preferred polished rice while women preferred brown rice. Subjects in their 20s and 30s preferred strawberries, whereas those in their 40s preferred cherry tomatoes and those in their 50s and above favored tomatoes (p<0.001). Among root and tuber crops (63.4%), sweet potato was the most preferred. Among fruits, subjects preferred apples while among special crops, they most preferred oyster mushrooms; both genders preferred Korean beef. The most preferred livestock product of subjects in their 20s was pork, whereas subjects in their 30s preferred Korean beef. Subjects in their 40s preferred Korean beef and pork in the same proportions, whereas subjects in their 50s and above favored eggs the most.
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.
This study was done to evaluate the health and nutritional status of female college students in Seoul. The subjects were 63 healthy college students aged 20 to 29 years. Their body composition, dietary intakes, clinical blood indices were investigated. Their body composition was determined by means of a multifreqency bioelectrical impedance analysis. Their dietary intake was determined using 3-day record method and their nutrient intake was analyzed by Computer Aided Nutritional analysis program for professional (CAN-pro). Their hemoglobin, hematocrit, red blood cell (RBC), white blood cell (WBC) and mean corpuscular volume (MCV) were determined by semi-automated microcell counter (F-520). Their plasma total cholesterol, TG, and HDL-cholesterol levels were measured using test kits. All data were statistically analyzed by SAS PC package program. Their average consumption of calcium, iron vitamin A, vitamin B2 and niacin were 63.3%, 65.0%, 85.2%, 89.2% and 95.2% of RDA, respectively. The overall mean values of the hematological indices in the female college students were within the normal range. However anemic subjects with hemoglobin (< 12 g/dl) and hematocrit (<36%) accounted for about 20% of the subjects. The mean levels of total cholesterol, HDL-cholesterol and TG were 188.4mg/dl, 69.9mg/dl and 67.4mg/dl, respectively. The percentages of the subjects with plasma total cholesterol level (> 200mg/dl) and LDL-cholesterol (>130mg/dl) were about 41% and 30.4%, respectively. The data showed a significantly positive correlation between either body fat (%) or BMI and TG. However. there was a significantly negative correlation between either body fat (%) or BMI and HDL-cholesterol. These overall results suggest that it is necessary for college women to be educated regarding consuming more iron and vitamin C and less fat, in order to prevent iron deficiency anemia and/or cardiovascular diseases in later life.
BACKGROUND/OBJECTIVES: Several previous studies have investigated whether regular walnut consumption positively changes heart-health-related parameters. The aim of this study was to investigate the effects of daily walnut intake on metabolic syndrome (MetS) status and other metabolic parameters among subjects with MetS. SUBJECTS/METHODS: This study was a two-arm, randomized, controlled crossover study with 16 weeks of each intervention (45 g of walnuts or iso-caloric white bread) with a 6 week washout period between interventions. Korean adults with MetS (n = 119) were randomly assigned to one of two sequences; 84 subjects completed the trial. At each clinic visit (at 0, 16, 22, and 38 weeks), MetS components, metabolic parameters including lipid profile, hemoglobin A1c (HbA1c), adiponectin, leptin, and apolipoprotein B, as well as anthropometric and bioimpedance data were obtained. RESULTS: Daily walnut consumption for 16 weeks improved MetS status, resulting in 28.6%-52.8% reversion rates for individual MetS components and 51.2% of participants with MetS at baseline reverted to a normal status after the walnut intervention. Significant improvements after walnut intake, compared to control intervention, in high-density lipoprotein cholesterol (HDL-C) (P = 0.028), fasting glucose (P = 0.013), HbA1c (P = 0.021), and adiponectin (P = 0.019) were observed after adjustment for gender, age, body mass index, and sequence using a linear mixed model. CONCLUSION: A dietary supplement of 45 g of walnuts for 16 weeks favorably changed MetS status by increasing the concentration of HDL-C and decreasing fasting glucose level. Furthermore, consuming walnuts on a daily basis changed HbA1c and circulating adiponectin levels among the subjects with MetS. This trial is registered at ClinicalTrials.gov as NCT03267901.
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