• Journal of the East Asian Society of Dietary Life
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• v.25 no.4
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• pp.691-702
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• 2015

This study examined the levels of risk perception of food risk elements by adopting a psychometric paradigm and analyzed factors affecting concerns about food risk elements to obtain basic materials for food safety policy. The data were collected from 296 housewives in Daegu, Korea, by a self-administered questionnaire. Frequency distributions, Pearson's correlation coefficient analysis, factor analysis, Cronbach's ${alpha}$, and multiple regression analyses were conducted by SPSS 21.0. The mean level of concern for food safety was 3.75/5.00 points, and the mean percentage of correct answers about heavy metal contamination was highest among food risk elements. The respondents perceived radioactive contaminated foods, GM foods, and endocrine disruptors as a new, delayed, scientifically unknown, involuntary, serious, and uncontrollable risk in risk perception. According to the result of factor analysis for risk perception, two factors such as non-controllability and dread were categorized. In the risk perception map, radioactive contaminated foods and GM foods were considered as an uncontrollable and dreaded risk, heavy metal contamination, endocrine disruptors, and pesticide residues as a controllable and dreaded risk, and foodborne illness and food additives as a controllable and less dreaded risk. On the other hand, the levels of concerns about food risk elements were higher in order of radioactive contaminated foods, GM foods, and endocrine disruptors. The results of multiple regression analysis showed that age, concern for food safety, percentage of correct answers about food risk elements, non-controllability, and dread influenced the concerns about food risk elements. These results imply that food safety policies should consider differences in consumer's risk perception of food risk elements.

• Journal of Nutrition and Health
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• v.52 no.6
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• pp.540-551
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• 2019

Purpose: Dietary fiber is a component of carbohydrate that is linked closely with the carbohydrate quality, but few studies have investigated the association of high fiber intake with the cardiometabolic risk factors in Koreans. This study examined the association of high fiber and high carbohydrate intake with the cardiometabolic risk factors among Korean adults. Methods: This study included 15,095 adults aged ≥20 years, who participated in the 2013 ~ 2017 KNHANES. The dietary intake was obtained using a 24-h dietary recall method. The associations of high fiber and high carbohydrate intake with metabolic syndrome and dyslipidemia were examined by sex using multiple logistic regression analysis. Results: The median of dietary fiber was 23.6 g/day in men and 20.0 g/day in women. Dietary fiber intake increased gradually as dietary carbohydrate groups increased except for ≥80% of energy from the carbohydrate group. Women in the highest quintile of fiber intake showed a 33% lower risk of metabolic syndrome compared with those in the third quintile. When stratified into low fiber (LF) and high fiber (HF) groups using Adequate Intake of fiber for Koreans, men in the third quartile of carbohydrate intake showed a 44% and 51% higher risk of metabolic syndrome and atherogenic dyslipidemia than in the first quartile, respectively, but only in the LF group. Women in the second quartile of carbohydrate intake showed an 83% higher risk of hypercholesterolemia than in the first quartile in the LF group. On the other hand, as no significant association was observed between the carbohydrate intake and metabolic diseases among the HF groups in both sexes. Conclusion: These findings suggest that a high fiber intake might be associated with a reduced risk of metabolic syndrome and high carbohydrate intake with a low dietary fiber intake might be associated with an increased risk of several metabolic abnormalities among Korean adults. Further prospective studies will be needed to confirm the effects of high fiber and high carbohydrate intake on the cardiometabolic risk factors among Koreans.

• Korean Journal of Community Nutrition
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• v.17 no.5
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• pp.664-675
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• 2012

This study was conducted to investigate the cross-sectional associations between dietary factors and the risk of metabolic syndrome (MetS) in 12,755 subjects (males 5,146, females 7,609) aged 19 years or above using data from the 4th (2007-2009) Korea National Health and Nutrition Examination Survey (KNHANES). The prevalence of MetS in Korean adults was 23.6% (males 26.1%, females 20.9%) with the criteria for modified National Cholesterol Education Program Adult Treatment Panel III. While males had a higher prevalence of abdominal obesity, hyperglycemia, hypertriglyceridemia, and high blood pressure than females, the prevalence of low HDL-cholesterol level was higher in females than in males. Among dietary guidelines, the response of 'yes' for asking practice of 'avoiding salty foods', and 'eating moderately and increasing physical activity for healthy weight' were significantly associated with the decreased risk of MetS in both males and in females. Especially, the risk of MetS was significantly lower in the subjects that responded the practice of all items of Korean Dietary Guidelines. Significantly negative associations with MetS were also found in the responding for practice of 'limiting consumption of alcoholic beverages' in males, and taking dietary supplements in females. Skipping breakfast was positively associated with the risk of MetS. In conclusion, dietary behaviors such as having breakfast, practice of dietary guidelines, and food consumption in moderation could modify the prevalence of MetS, and our findings could be useful for establishing guidelines for preventing MetS.

• Nutrition Research and Practice
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• v.14 no.4
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• pp.384-400
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• 2020

BACKGROUND/OBJECTIVES: Dietary factors are important contributors to cardiometabolic and cancer mortality. We examined the secular trends of nine dietary factors (fruits, vegetables, whole grains, nuts and seeds, milk, red meat, processed meat, sugar-sweetened beverages, and calcium) and the associated burdens of cardiometabolic and cancer mortality in Korea using representative cross-sectional survey data from 1998 to 2016. SUBJECTS/METHODS: Using dietary data from Korean adults aged ≥ 25 years in the Korea National Health and Nutrition Examination Survey (KNHANES), we characterized secular trends in intake levels. We performed comparative risk assessment to estimate the population attributable fraction and the number of cardiometabolic and cancer deaths attributable to each dietary factor. RESULTS: A total of 231,148 cardiometabolic and cancer deaths were attributable to nine dietary risk factors in Korea from 1998 to 2016. Suboptimal intakes of fruits and whole grains were the leading contributors. Although the intakes of fruits, vegetables, and whole grains moderately improved over time, the intake levels in 2016 (192.1 g/d, 225.6 g/d, and 10.9 g/d, respectively) remained far below the optimal levels. Deaths attributable to the low intakes of nuts and seeds (4.5 g/d), calcium (440.5 mg/d), and milk (37.1 g/d) and the high intakes of red meat (54.7 g/d), processed meat (4.7 g/d), and sugar-sweetened beverages (33.0 g/d) increased since 1998. Compared with older age groups (≥ 45 years), more unfavorable changes in dietary patterns were observed in the younger population aged 25-44 years, including more sharply increased intakes of processed meat. CONCLUSIONS: We observed improvement in the intakes of fruits, vegetables, and whole grains and unfavorable changes in the intakes of processed meat and sugar-sweetened beverages over the past few decades. Our data suggest that to reduce the chronic disease burden in Korea, more effective nutritional policies and interventions are needed to target these dietary risk factors.

• International Journal of Human Ecology
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• v.4 no.2
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• pp.101-106
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• 2003

The relationship between fat intake and breast cancer has been debated for a long period of time. Animal, ecological, and case-control studies have supported that dietary fat increases breast cancer risk. However, cohort studies have not support any strong association between dietary fat intake and breast cancer risk. It has not been clear whether fat per se or some specific type of fat is responsible for the increased risk. Recently, a few cohort studies have found some positive association between specific types of fat intake, but not overall fat intake and breast cancer risk. In this review, the findings from previous studies will be summarized with advantages and disadvantages of different types of study design and recent findings will be introduced.

• Journal of the East Asian Society of Dietary Life
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• v.19 no.1
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• pp.116-129
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• 2009

The study was conducted to evaluate consumer awareness of the risk elements associated with foods and their information search behavior regarding food safety. The data were collected from 504 adult consumers living in Seoul, Busan, Incheon, Daegu, Daejeon, and Gwangju through a self-administered questionnaire on August, 2006. Frequency analyses, t tests, one-way analysis of variance, and Duncan's multiple range comparison tests were conducted to analyze the responses using SPSS v. 14.0. The levels of recognition of consumers regarding each risk element were generally low. Many respondents answered that they obtained information regarding food safety from TV/radio/newspapers and family/relatives/friends/neighbors. The respondents also indicated that they had strong confidence in the information from family/relatives/friends/neighbors. Additionally, most respondents required information regarding heavy metal contamination, endoctrine disruptors, and avian influenza.

• Journal of the East Asian Society of Dietary Life
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• v.20 no.3
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• pp.481-490
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• 2010

The shock of melamine-contained food has been known with the incident of hospitalization or death of infants at the age of 11-month old in China. The purpose of this study was to examine consumers' risk perception, attitude and purchase behavior of melamine-contained food which recently came to the fore as a social issue, focusing on the relationship between consumers' attitude and purchase behavior based on physical risk, social risk, psychological risk, financial risk, consumers' attitude and purchase behavior. Study findings are as follows. First, the four factors of risk perception of melamine-contained food were significantly different by consumers. Consumers regarded social risk as most significant and it was followed by financial risk and psychological risk. And they regarded physical risk as most insignificant. Second, as for the difference of risk perception by demographic features, such factors as gender, age, marital status and schooling had no statistically significant influence. Third, the potential risk of melamine-contained food had a negative influence upon consumers' attitude and purchase behavior. In addition, consumers' attitude and purchase behavior were decided by perceived risks. This finding implies that consumers' attitude can accompany with negative or positive behavior and consumers' behavior can be related to social, financial and physical risks. Because the risk perception of melamine-contained food can cause consumers' distrust about all kinds of food in general, domestic manufacturers of milk product-contained confectionery and food can be harmed. In order to overcome this problem and make consumers purchase all the milk products and milk-contained food without fear, governmental agencies must reestablish systems with which the safety of imported raw materials and its processing can be insured and manufactures must improve the quality of products in a diverse and discriminative manner. This study seems to be meaningful in that it examined consumers' risk perception of melamine-contained food, a current social issue, and then looked into the influence of risk perception upon consumers" attitude and behavior, thus presenting the strategy of reestablishing the system of relationship between consumers and business entities in a desirable manner.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.11
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• pp.1753-1758
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• 2013

A debate over the association between dietary patterns and obesity is not settled in the literature. Some studies suggest that there are significant differences in the mean body mass index (BMI) across dietary patterns, while others refute the result. Therefore, we extended this line of study to examine whether the influence of dietary pattern is strong enough to affect the incidence of obesity based on the criterion, BMI=25. We identified 3 dietary patterns using a cluster analysis of food intake data obtained from the food frequency survey conducted as a part of Korean genome epidemiologic study: 'variety', 'unrefined grain', and 'rice' dietary patterns. A Cox Hazard regression result showed that the all the dietary pattern variable parameters were not significant. Hence, it was concluded that the dietary patterns do not affect the incidence of obesity under the control of variables, such as age, energy intake, and etc.

• Journal of Nutrition and Health
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• v.35 no.1
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• pp.78-89
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• 2002

This study was performed to analyse some rick ffactors for chronic degenerative diseases of the Korean dict. The study subjects consisted of preschool children(PC), elementary school children(EC), high school students(HS), college students(CS), and adults over 30 years old living in Seoul and the surrounding areas. The subjects over 30 years old were classfied to 30-49 years, 50-69 years, and over 70 years. A dietary survey was conducted using 24-hour recall method and data were collected from 2392 subjects. The dietary risks for chronic degenerative disease such as food sources of fat consumption, high cholesterol intake, low dietary fiber intake, and low calcium intake and high protein intake were analyzed. Younger subjects had more animal fat proportion than older subjects did. HS and CS had the least fat proportion from fishes and shellfishes. Each mean cholesterol intake of PC, EC, HS, and CS was over 300mg/day, and HS load the highest level of 415mg/day. Cholesterol density of the diet of PC was the highest of 175mg/1000kcal and the level decreased when the age increased. The subjects consuming cholesterol over 100 mg/1000kca1 were about 70% of PC and HS. More than 20% of PC, EC, and HS consumed calcium under 75% of RDA with protein consumption over 125% of RDA. Dietary fiber intakes were 18g for HS, CS, 30-49 years, and 50 ∼ 69 years, 14g for EC and over 70 years, and 12g for PC. Ninety percent of PC and EC, 80% of HS and CS, and 70% of tole subjccts over 30years consumed dietary fiber under the level of 10g/1000kca1. The major food sources of dietary fiber were vegetables and grains. From these results, children and adolescents had ricks for chronic degenerative diseases on all the analyzed items. The results of this study would provide the basic information for development of dietary interventions to improve diet find health.

• Journal of Nutrition and Health
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• v.40 no.8
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• pp.745-752
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• 2007

While metabolic syndrome(MS) is rapidly expanding and dietary pattern, the known risk factor of MS, goes through heavy transition to western diet, not many researches have been done on the association between dyslipidemia and dietary factors in Korean adults. The purpose of this study was to investigate the association between compliance with dietary guidelines and dyslipidemia among Koreans. The subjects of 399 adults who visited health examination center were classified into dyslipidemia(n=180) and control(n=219). Diagnosis of dyslipidemia was based on NCEP-ATPIII criteria(triglyceride>=150mg/d, HDL-C<50mg/dl for male, HDL-C<40mg/dl for female). A questionnaire based interview was done to collect information on compliance with dietary guidelines, general characteristics and health related behaviors. Anthropometric variables were measured during the survey. Mean compliance score of dietary guideline was significantly lower in dyslipidemia group than in control. It was associated negatively with waist circumference and positively with serum HDL-cholesterol(p<0.05). Risks of dyslipidemia were significantly decreased in the group with highest dietary guideline score, high serum triglyceride levels(OR=0.484, 95% CI=0.268-0.875), abdominal obesity(OR=0.296, 95% CI=0.159-0.553), and dyslipidemia(OR=0.481, 95% CI=0.266-0.869). These results indicated that increasing compliance with dietary guidelines could be an effective strategy to lower the risk of dyslipidemia among Koreans.