• Journal of Preventive Medicine and Public Health
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• v.42 no.6
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• pp.360-370
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• 2009

Genetic factors clearly play a role in carcinogenesis, but migrant studies provide unequivocal evidence that environmental factors are critical in defining cancer risk. Therefore, one may expect that the lower availability of substrate for biochemical reactions leads to more genetic changes in enzyme function; for example, most studies have indicated the variant MTHFR genotype 677TT is related to biomarkers, such as homocysteine concentrations or global DNA methylation particularly in a low folate diet. The modification of a phenotype related to a genotype, particularly by dietary habits, could support the notion that some of inconsistencies in findings from molecular epidemiologic studies could be due to differences in the populations studied and unaccounted underlying characteristics mediating the relationship between genetic polymorphisms and the actual phenotypes. Given the evidence that diet can modify cancer risk, gene-diet interactions in cancer etiology would be anticipated. However, much of the evidence in this area comes from observational epidemiology, which limits the causal inference. Thus, the investigation of these interactions is essential to gain a full understanding of the impact of genetic variation on health outcomes. This report reviews current approaches to gene-diet interactions in epidemiological studies. Characteristics of gene and dietary factors are divided into four categories: one carbon metabolism-related gene polymorphisms and dietary factors including folate, vitamin B group and methionines; oxidative stress-related gene polymorphisms and antioxidant nutrients including vegetable and fruit intake; carcinogen-metabolizing gene polymorphisms and meat intake including heterocyclic amins and polycyclic aromatic hydrocarbon; and other gene-diet interactive effect on cancer.

• Korean Journal of Community Nutrition
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• v.21 no.3
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• pp.256-264
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• 2016

Objectives: This study aimed to evaluate the diet and health status of elderly women according to the family type. Methods: A total of 307 elderly women participated in this study were divided into one of three groups according to their family type: residing with spouse (RSP; n=88), residing with son or daughter (RSD; n=119), and residing alone (RAL; n=100). Chisquare test was used to assess dietary habits and health status of the subjects by the family types. Results: Results demonstrated significant associations between eating regular meals, person preparing meals, coffee intake, and bone fracture experience and family type. Among the three groups, the RSP and RAL groups had a higher percentage for preparing meals by themselves (p<0.001) than the RSD group. The RAL group had a lower percentage for eating regular meals (p<0.01) but a higher percentage for bone fracture experience (p<0.05) than the other groups. There were no significant differences in monthly allowance, self-estimated health status, physical activity, exercise, drinking, and dietary habits such as frequency of consumption of dairy, beans, eggs, fish, meat, fruits, and vegetables among the three groups. Conclusions: The results showed that elderly women residing alone without a son, daughter, or spouse had more diet-related and health problems such as irregular meals and high bone fracture experience. These findings suggested that elderly women residing alone need more attention and support.

• Korean Journal of Community Nutrition
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• v.18 no.6
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• pp.599-610
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• 2013

This study was carried out to analyze the effect of a diet program for adult women on weight loss, BMI, eating habits, sleeping habits, health related indices. The subjects was 415 participants of the 10 weeks (20 time participation program). The data was collected by basic somatometry and HRV (Heart Rate Variability) / APG (Accelerated Plethysmograph) Analyzer. The average age, height, weight and BMI were 28.6 years, 162.1 cm, 62.8 kg and 23.9 $kg/m^2$, respectively. Their body types by BMI were under weight (1.2%), normal (45.8%), overweight (24.8%), mild obesity (22.7%) and obesity (5.5%). There were significant reductions of average weight (4.6 kg) and average BMI (1.75 $kg/m^2$) on the 10th week. There were positive changes in vascular age (50.4%), stress index (44.6%), fatigue index (43.9%), health index (54.5%) of the subjects during the program. There was a meaningful difference of the average variation for the vascular age, stress index, fatigue index, and health index between two groups; one improving the eating habit and the other did not (p<0.05), and also there was a meaningful difference of the average variation for the fatigue index in both groups improving the sleeping habit (p<0.05), but was not a meaningful difference of the average variation for the vascular age, stress index, and health index between two groups. There was a meaningful difference of the average variation for the vascular age, stress index, fatigue index, and health index between two groups improving both eating and sleeping habit (p<0.05). In conclusion, the weight loss program was effective on the weight loss and BMI reduction and health related indices.

• Fisheries and Aquatic Sciences
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• v.26 no.8
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• pp.482-490
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• 2023

Food and feeding habits of Labeobarbus intermedius were studied from the newly constructed Ribb Reservoir, Ethiopia during the dry (December-March) season and wet season (June-August) of 2021. The objective of the study was to determine the diet composition, seasonal variation, and ontogenetic dietary shift in the diets of the dominant cyprinid fish in Ribb Reservoir. In this study, frequency of occurrence and volumetric analysis methods were used to present the results. From a total of 203 fish samples, 132 (65%) guts contained food items. Macrophytes (29.4%), phytoplankton (27.2%), detritus (14.8%), and insects (13.6%) were the major food items in the diets volumetrically. During the dry season, L. intermedius was mainly dependent on phytoplankton (58.2%), insects (15.2%), and zooplankton (13.7%) volumetrically. Whereas, macrophytes (50.3%) and detritus (23.3%) were the dominant food items in the wet season. The frequency occurrence and volumetric contribution of the diets of L. intermedius varied significantly (χ² test, p < 0.05) between seasons. Schoener's diet overlap index revealed a slight ontogenetic dietary shift in the diets of L. intermedius. While insects, nematodes, and zooplankton were the main diets of small-sized L. intermedius, macrophytes and detritus were ingested by large-sized L. intermedius. Generally, L. intermedius fed both plant and animal-origin food items and is considered an omnivorous feeder in Ribb Reservoir.

• Journal of Korean society of Dental Hygiene
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• v.8 no.4
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• pp.229-240
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• 2008

Objectives : This study was to investigate the impact of dietary habits and obesity on level of oral health in the elementary school children and to characterize the relationship among dietary habits, obesity and level of oral health by DMFT index and perceived oral health. Methods : Participants were 314 total students from one elementary school who lived Yeosan. Self-administered questionnaires were given to the subjects from March 25 through May 12, 2008, to identify their the degree of dietary habits, perceived oral health. A trained investigator made an oral examination of them in natural light using a mirror and explorer to determine their DMFT index. We classified the subjects into Data were analyzed with T-test, one-way ANOVA, and Duncan's multiple range test, pearson correlation coefficient and multiple regression using the SPSS WIN 12.0 program. Results : Regarding dietary habit, the subjects achieved a mean of 10.52${\pm}$3.80 out of a maximum 20 points. The DMFT index in the subject was 0.60${\pm}$2.03. The group of obesity by gender were 19.2% and 22.5%. Moreover, those who were children and had more severe level of obesity felt that their perceived oral health and DMFT index were higher. There was a significant assocciation of oral health among elementary school children with obesity. Conclusion : These results suggest that oral health behavioral and attitude, dietary habits and obesity influenced the level of oral health. Thus further research targeting to positive attitude toward effective management of childhood obesity combined with significant dietary habits, may lead to promotion of oral health.

• The Korean Journal of Food And Nutrition
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• v.28 no.6
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• pp.1056-1064
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• 2015

This study was designed to provide the basic data of an effective nutrition education for desirable lifestyle and dietary habits to improve the nutritional status for the elderly by investigating health-related lifestyle, dietary habits, nutritional knowledge, and food intake of the elderly. The subjects included 58 elderly men and 146 elderly women. 35.8% had no more than an elementary school education. Most subjects (54.4%) were widows/widowers. Most subjects (71.0%) made over 150,000 won. 52.5% of subjects lived in houses. Smoking, drinking, exercise, the average sleeping time were significantly difference between the gender (p<0.05). In terms of dietary habits, our results showed that 80.9% of respondent eat regularly meals, including breakfast (83.5%). Both sexes prefer soft and salty food. Women enjoys more spicy and salty food compared with men and then shows meaningful difference (p<0.05). Their favorite meals are soup, stew, salad and boiled vegetables. Compared to women, men have a higher rate of correct answers about questions related to nutrition knowledge as showing significantly difference (p<0.05). In a study of dietary habits, they take in carbohydrates with the highest percentage and following by vegetables and fruits. The amount of meat, first and egg they eat is more than the previously. Eating meat is higher men as showing significant difference (p<0.05). In summary, nutritional status for the elderly shows healthy lifestyle and diet about half of those and most them try to live healthy life in future. It is hope that the elderly may need to learn proper nutrition knowledge for healthy lifestyle and nutrition education and counseling for building up healthy lifestyle and desirable dietary habits. Furthermore, it is necessary to start work to establish a baseline nutritious evaluation for the elderly and at a time to study the development of standard eating tool proven reliability and validity, consequently to provide a basic framework for the evaluation of nutritional status.

• Journal of the East Asian Society of Dietary Life
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• v.7 no.1
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• pp.71-86
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• 1997

The 297 middle school girls in Inchon were devided into three groups according to body mass index(BMI), the under weight group, the normal weight group and obese group to find out relationship between their food habits, food preference, and obesity. The average height and weight are 159.40cm, 67.02kg for obese group, 158.17cm, 39.11kg for under weight group, 156.93cm, 53.78kg for normal weight group. Obese group feels that they are healthy and fat, and their parents are fat also than the other groups. Obese group took more exercise. Total Food habits scores of obese group were lower than the other two groups. In terms of supper, bedtime-smack, unbalanced diet, balanced intake of five basic food groups obese group had lower scores. Especially, intake of carbohydrate, protein, milk group were irregular. There is no significant different in size of meal, overeating eating speed. The preferences of fast food, instant food, high caloric density food were lower in obese group than in the other two groups. The mother of obese group prepared meals according to food composition and prepared little snakes.

• Journal of the Korean Dietetic Association
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• v.16 no.2
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• pp.133-145
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• 2010

This study was conducted to examine the needs of nutrition education based on analysis of the eating habits and nutrition knowledge among middle school students. The survey was conducted on 536 students (boys=216, girls=320) using a questionnaire. The average number of meals consumed was three (67.5%) and 58.0% of students reported having breakfast. Concerning the nutritional knowledge, students showed the highest score (girls, 0.90${\pm}$0.03 and boys 0.82${\pm}$0.04) for items describing the proper diet plan for obesity. Additionally, nutritional knowledge was found to have a significant effect on dietary habits. Regarding the necessity for nutrition education, high response rates for "For normal growth of students (44.8%)" and "Help to select proper food and choose safe food (24.0%)" were observed. Taken together, these findings indicate that consistent and systematic management is required under the institutional support by the school to improve students' perception regarding nutrition and to develop effective nutrition education.

• Proceedings of the Korean Society of Toxicology Conference
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• 2003.10b
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• pp.105-105
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• 2003

Cancer has been important cause of human mortality. It was known that about one third of all deaths from cancer may be ascribed to diet habits. To identify food and drinks which could protect against cancer is important. Antimutagenicity and anticarcinogenicity of dietary components are being studied extensively.(omitted)

• Journal of Nutrition and Health
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• v.35 no.1
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• pp.102-114
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• 2002

This study was performed to assess the relationship between diet quality and general characteristics, stress, exercise habits, and nutritional knowledge score in the postmenopausal women. The data of dietary intakes were obtained using food frequency questionnaires which were collected from 151 postmenopausal women in urban area. Diet quality was assessed by INQ(index of nutritional quality), MAR(mean adequacy ratio), DDS(dietary diversity score), DVS(dietrary variety score), DQI(diet quality index). The results are summarized as follows. The mean age of the subjects was 59.9 years old. The means of height, weight, and BMI were 154.7cm, 57.2kg and 23.9 respectively. The subjects who did not exercise regularly were 70.9% and those who excercised at least once a week were 29.1%. The subjects who had regular meal time were 69.5% and those who ate breakfast regularly were 72.6%. More than 2/3 of subjects had regular eating behavior. Overall dict quality was significantly(p < 0.05) associated with INQ, MAR, DDS, DQI. However, there was no significant association between income level and diet quality. In conclusion, it would be beneficial to provide nutritional education included dietary diversity, dietary variety, dietary guideline, and adequate flood amount, to prevent chronic degenerative disease and maintain healthful life in the postmenopausal women.