This study estimated the isoflavone intake level in Koreans using Food Frequency Questionnaire and analyzed related variables. The results showed that the average daily intake of isoflavone in adults was shown as 23.1 mg. The isoflavone intake level at 50 percentile was 16.9 mg (0~190 mg), and 10% of adults took almost 50 mg of isoflavone a day and 10% took about 5 mg a day. The major food sources for isoflavone in Koreans were in the order of soybean, soybean paste, soy milk, soybean curd (tofu), and bean sprouts; the intake was different depending on age, educational background, occupation, economic standard, and family type. The result showed higher isoflavone intake levels in the group over 30 years old and the highest isoflavone intake in subjects working in farming/fishery, followed by housemakers. According to the differences by families the families with elderly members showed 50% higher isoflavone intake than young families with friends or siblings. Depending on related ecological variables, therefore, various nutrition education programs should be developed for a variety of intakes of soybean foods, along with easy and simple cooking methods as parts of continuous research.
Adult* ; Aged ; Cooking ; Education ; Friends ; Genistein ; Humans ; Occupations ; Surveys and Questionnaires ; Siblings ; Soy Foods ; Soy Milk ; Soybeans

In this study, the soy food intake behaviors including perception and intake frequency of soybean foods by sociodemographic variables were analyzed in housewives. The perception of housewives for soy foods showed that soybean paste, soybean curd, and Dambuk were high in the descending order for nutritional quality and health promotion effect, and soybean paste received the highest score in taste and flavor. Soybean sprouts received the highest evaluation score in the economic aspect. In the aspect of safe food, soybean paste received the highest evaluation score, as mush as a traditional food. The analysis of perception by sociodemographic variables showed that soybean curd, Dambuk, and soybean sprouts had higher perceptions as education level increased, and soy milk had higher perceptions in subjects with younger age and with employment. In the intake frequency, more than 50% of the subjects had soybean curd, soybean sprouts, and soybean paste more than once a week. The analysis for correlation between the intake frequency of soy foods and the degree of perception showed that taste and flavor had high correlation with the intake frequency of soy foods except soybean sprouts. The intake frequency of soybean paste, Dambuk, and soy milk had positive correlations to familiarity and that of soy milk had positive correlations to nutrition and health perception, and those of soybeam paste, soybean sprouts, and soy milk had positive correlations to safe food perception. From the above results, housewives in Korea had very high perceptions to nutritional quality and health promotion effect of soy foods and the degree of perception and accompanied intake frequency had significant differences by age, education level, and economic level among sociodemographic variables.
Employment ; Health Promotion ; Korea ; Nutritive Value ; Recognition (Psychology) ; Soy Foods ; Soy Milk ; Soybeans

This study was conducted to investigate the attitude to various soy foods and to estimate dietary isoflavone intake among Korean adolescents. The survey was carried out by self-administered questionnaire with 800 middle and high school students residing in urban and rural areas and 714 questionnaires were collected: resulting in 89% response rate. The dietary isoflavone intake was estimated by food frequency questionnaire developed for rapid assessment of isoflavone intake. Soybean paste, soybean curd, soy milk, bean sprouts and dambuk were recognized as nutritious and healthy food in order. Dambuk got the lowest score in taste and flavor. Bean sprouts, soybean curd and soybean paste were recognized as familiar food in order. Stuffed rice in fried soybean curd got the highest score and Miso soup got the lowest in preference. More than 50% of the subjects consumed soybean paste stew/soup and soybean curd over twice per week and 12.3% of the subjects consumed soybean over once a day. The estimated daily intake of isoflavones ranged from 0 to 227 mg, and the mean daily isoflavone intake of the subjects was 28.1 mg (16.3 mg genistein and 12.0 mg daidzein) whereas the median value of isoflavone intake was 19.7 mg. There was statistically significant relationship among Kyung Gi Do, Chung cheung Do and Seoul residents in their intake of isoflavone. The highest monthly income group consumed isoflavone more than the other groups. These results suggest that Korean adolescent perceived the soybean dishes as high quality foods but they didn't take much because of difficulty to cook or less chance to eat. Nutrition education program is needed to enhance consuming soy foods for prevention of chronic diseases related to dietary isoflavone intake. More detailed information on easy cook method of soy food is also needed.
Adolescent* ; Chronic Disease ; Education ; Genistein ; Humans ; Isoflavones ; Seoul ; Soy Foods* ; Soy Milk ; Soybeans

The purpose of this study was to determine if Theory of Planned Behavior (TPB) variables predict soy milk intake in a sample of WIC participants in 2 Illinois counties (n = 380). A cross-sectional survey was used, which examined soy foods intake, behavioral beliefs, subjective norms, motivation, and intention. Soy product intake was low at both sites, and many participants (40%) did not know that soy milk was WIC approved. Most (> 70%) wanted to comply with their health care providers, but didn't know their opinions about soy milk (50-66%). Intention was significantly correlated with intake (0.507, P < or = 0.01; 0.308, P < or = 0.05). Environmental beliefs (0.282 and 0.410, P < or = 0.01) and expectancy beliefs (0.490 and 0.636, P < or = 0.01) were correlated with intention. At site 1, 30% of the variance in intention to consume soy milk was explained by expectancy beliefs and subjective norm beliefs (P < 0.0001); at site 2, 40% of the variance in intention was explained by expectancy beliefs. The TPB variables of expectancy beliefs predicted intention to consume soy milk in WIC participants. Therefore, knowing more about the health benefits of soy and how to cook with soy milk would increase WIC participants' intention to consume soy milk. Positive messages about soy milk from health care providers could influence intake.
Child* ; Cross-Sectional Studies ; Female ; Health Personnel ; Humans ; Illinois ; Infant* ; Insurance Benefits ; Intention ; Motivation ; Soy Foods ; Soy Milk*

PURPOSE: This study was performed to examine associations of intakes of milk and dairy products, pulses, and soy foods with bone health in Koreans aged 50 yr and older. METHODS: A total of 3,201 men and 3,581 women aged 50 yr and older who participated in the 2008~2011 Korea National Health and Nutrition Examination Survey were grouped by sex and age groups of 50~64 yr and 65 yr and older. Subjects within each sex and age group were divided into three bone health groups: normal, osteopenia, and osteoporosis groups based on bone mineral density. Intakes of nutrients and foods derived from 24-hour recall data were compared among three bone health groups. Associations between intake frequencies of foods, including milk, yogurt, tofu, or soy milk, and osteoporosis risk were evaluated based on confounding risk factor-adjusted logistic regression. RESULTS: Calcium intake was in the order of normal, osteopenia, and osteoporosis in men (p < 0.01) and women (p < 0.05) aged 50~64 yr as well as in men aged 65 yr and older (p < 0.001). In women aged 50~64 yr, intake of milk and dairy products was lower in the osteoporosis group (p < 0.01) as compared with the osteopenia group. Intake of pulses or tofu was not significantly different among bone health groups. Odds ratio (OR) for milk intake frequency (≥ 2 times/week) compared to intake frequency less than 1 time/month was 0.45 (95% CI 0.24~0.85, p for trend = 0.022) in men aged 65 yr and older. The OR for yogurt intake frequency (1 time/month~1 time/week) was 0.47 (95% CI 0.30~0.73, p for trend = 0.019) in women aged 50~64 yr. Intake frequency of tofu or soy milk was not associated with reduced risk of osteoporosis in all groups. CONCLUSION: Dairy food intake was significantly associated with bone health, and its effect was sex- and age group-specific, whereas soy food intake was not. Dietary intervention to prevent osteoporosis would be effective for women aged 50~64 yr old and for men aged 65 yr and older.
Bone Density ; Bone Diseases, Metabolic ; Calcium ; Dairy Products ; Eating ; Female ; Humans ; Korea* ; Logistic Models ; Male ; Milk ; Nutrition Surveys* ; Odds Ratio ; Osteoporosis ; Soy Foods ; Soy Milk ; Yogurt

The study on female workers without pregnancy with ages of 17-49 and anemia in the Garment company in Hai Duong and Hung Yen during 4-10/2000. The participants were randomly divided in to 2 groups: N1: using 10 ml of iron complemented sauce one per day within 26 weeks, N2 (control) using the normal sauce with the same dose and duration. The results showed that the quality and microbial criteria met allowed limits of Ministry of Health. Users approved the iron-complemented sauce. The rates of anemia and iron deficiency in women of N1 group were reduced 33.9% and 38.7%, respectively.
Anemia ; Soy Foods ; iron ; women

This study was conducted to analyze the effect of isoflavone intake on prevention of chronic disease in middle and old aged man. In this study we used FFQ (Food frequency questionnaire) and the isoflavone intake level of the subjects was 25.10 mg per day. We divided the subjects into three group -high, medium, low isoflavone intake level- and investigated the relation among isoflavone intake level and clinical/anthropometric characteristics. The intake of isoflavone was inversely related with the body fat in male subjects. And we also divided the subjects into 2 groups with normal and abnormal clinical/anthropometric risk factor. The isoflavone intake level of the abnormal group with high TG, high WHR and high body fat was lower than the normal group. The main food source of isoflavone was soybean curd, bean sprout, soybean paste, soybean and soy milk, and we also investigated the relation between frequency of soybean food and anthropometric and clinical variables. The frequencies of soybean curd, soybean paste, soybean broth, soy milk, bean sprouts, peanuts, soybean and dambuk as well as intake of isoflavone were inversely correlated with some anthropometric and clinical variables such as blood pressure, TG, BMI, % body fat, and waist-hip ratio, whereas positively correlated with HDL cholesterol, muscle mass and bone density. We suggest that high consumption of soy products and isoflavone is associated with decreased blood lipid and body fat in middle and old aged man and might be useful for prevention cardiovascular diseases. From this study, we obtained valuable basic information on recommended isoflavone intake level and guidelines for the prevention of some chronic diseases/health problems.
Adipose Tissue ; Adult ; Aged ; Arachis ; Blood Pressure ; Bone Density ; Cardiovascular Diseases ; Cholesterol, HDL ; Chronic Disease ; Humans ; Male ; Muscles ; Risk Factors ; Soy Foods ; Soy Milk ; Soybeans ; Waist-Hip Ratio

PURPOSE: Although the prevalence rate of chronic diseases is rapidly increasing due to an unhealthy diet in Korea, nurses may not have enough nutritional knowledge to educate their patients. This study investigated the level of nurses' nutritional knowledge for chronic diseases as well as for strokes, and the needs for nurses' nutritional education. METHODS: This research is a descriptive research conducted from April to August of 2014, on 242 nurses who work with stroke patients, in two tertiary general hospitals in the city of Seoul, South Korea. RESULTS: The average nutritional knowledge score of our subjects was 19.9+/-2.51 (range 12-24). The correct response rate was 83% which was higher than expected. However, many nurses (31-66%) answered incorrectly on items such as 'Drinking low-fat milk is better than whole milk', and 'Seasoning with a large amount of soy sauce instead of salt can reduce sodium consumption'. We also found that nurses who received continuing education regarding nutrition scored higher than those who did not (p=.020). There was no correlation between nutritional knowledge and the need for nutritional education (r=.034, p=.601). CONCLUSION: The level of nutritional knowledge of the nurses was relatively low and irrelevant to the completion of nutrition courses during university or duration of experience. Rather, the relevance was higher when the nurse received nutrition-related training after graduating from university. Our results imply that continuous nutritional education is necessary for hospital nurses.
Chronic Disease ; Diet* ; Education ; Education, Continuing ; Hospitals, General ; Humans ; Korea ; Milk ; Prevalence ; Seoul ; Sodium ; Soy Foods ; Stroke*

This study aimed to plan nutrition support programs for the elderly living alone whose nutrition status were seriously concerned, conducted seven stages nutrition intervention program on a trial basis, and evaluated the effectiveness of the program of the Elderly Nutrition Support Project. Subjects were selected for personalized nutrition management based on nutritional risk score and nutrition intervention were tailored to the problems occurred. The elderly nutrition support program targets were 44 senior citizens who lived alone with low income. The 33 (as Type 1) of the subjects with whom milk, tofu, seaweed, eggs, black beans have been supported, and also provide nutrition education, and the rest 11 persons (as Type 2) to whom food was not supported but provide nutrition education programs. As a result, all subjects showed that compared with pre and post program implementation, their daily exercise time and milk and protein consumption level were increased and some improvement was observed regular meals consumption and low-salt diets. Their nutrient intake level such as calories, protein, calcium, iron improved after implementation. In addition, NSL DETERMINE scores significantly improved from 13.21 to 7.24 in Type 1 and 11.27 to 9.91 in Type 2. As positive dietary behavioral changes were observed as in that they purchased more protein and calcium rich foods.
Aged ; Calcium ; Diet, Sodium-Restricted ; Eggs ; Fabaceae ; Humans ; Iron ; Meals ; Milk ; Nutritional Status ; Ovum ; Seaweed ; Soy Foods

Few studies have conducted the bone health benefits of usual dietary isoflavone intake in Korean college-student women. To elucidate this benefitial effects and correlations between dietary isoflavone and nutrients intake and bone formation marker (ALPase, osteocalcin), questionnaires, anthropometric measurements, serum mineral (Ca, P, Mg) concentrations were analyzed. Fifty three subjects were used in this study. The average age, height, body weight, BMI, body fat content and triceps skinfold thickness were 21.43 year, 161.07 cm, 52.81 kg, 20.48 kg/m2, 20.72% and 17.59 mm respectively. Soy food intake frequencies were soybean > soybean curd > soypaste stew > soybean milk. The average calorie, protein and Ca intake were 1766.21 +/- 62.54 kcal, 66.45 +/- 2.00 g and 549.62 +/- 27.55 mg respectively. Serum ALPase activity and osteocalcin concentration were 115.74 +/- 3.6 u/L and 7.15 ng/ml respectively. Usual dietary isoflavone intake was positively related to calory, protein, Ca, P intake and serum Ca, Mg concentration. Serum osteocalcin concentration was negatively correlated with isoflavone intake (r2=0.28, p < 0.05). In these results, usual dietary isoflavone can support an additive effect to bone health and Ca nutrition.
Adipose Tissue ; Body Height ; Calcium ; Female ; Humans ; Insurance Benefits ; Milk ; Osteocalcin* ; Osteogenesis ; Skinfold Thickness ; Soy Foods ; Soybeans