Introduction In recent years it has been observed epidemiological transition in the world population’s morbidity and mortality causes, indicating a shift from communicable diseases to non-communicable diseases. In 2012, cardiovascular diseases alone accounts for 30 per cent of all deaths in the world. In Mongolia, non-communicable diseases are growing steadily and becoming the leading causes of morbidity and mortality of population. According to the Global School-based Student Health Survey-Mongolia 2010, overall, 19.3 per cent of school children had 4 or more nutritional risk factors of NCD and 8,3 per cent of students were overweight and 0,8 per cent were obese. Above mentioned study shows that, the prevention of NCD should be started from childhood, improving the consumption of fruits and vegetables for school snack and lunch is important in the prevention of NCD among school children. The study is aimed at determination of types, consumption and chemical composition of food products and meals provided in school snack program. Scope and methods of investigation The investigation was performed in Ulaanbaatar and Tuv aimag. Under the our investigation included a totally 14 school canteens of Ulaanbaatar and Tuv aimag. Consumption of Food products was investigated using the Food Consumption Questionnaire method. All managers of school canteens interviewed by well-trained researchers using the time from 20 to 30 min for each of them. Food samples were obtained, keeping in cool boxes, transported to the Public Health Central Laboratory of National Center of Public Health, Mongolia. Chemical composition of food and snack samples were investigated according to the related standard methods for determination of protein, fat, carbohydrates, Vitamin C, Calcium. Results Consumption of vegetables and local fruits for school snack and meal was not enough for prevention of NCD among school children. Use of milk and milk products for school snacks and lunch were obtained only 1-3 times during the 10 days, which is too poor consumption. According to the results of chemical analysis, 83.4 per cent of all food samples had calories less than 340 kcal, which is the required value of calories of school snack per one student. With regard to protein level 50 per cent of samples had 2.57-7.7grams of protein, which is lower than the recommended level of 10-12 gr. Fat level of samples were ranged between 7.2-1.97 grams and 95.5 per cent of samples had lower fat content compared to the recommended value of 9.0 grams. When 68.7 per cent of samples had 4.5-38.03 grams of carbohydrates, which is lower than the recommended amount, some 4.5 per cent of samples had higher carbohydrates compared to the recommendation. Amount of vitamin C in school snack was extremely lower than the recommended amount that vitamin C was found between 0.02-2.31mg, satisfying only 10 per cent of the national recommendation of vitamin C amount for school snack. Amount of Calcium in milk products of school snack and meals was also low than recommended level.

Selenium was discovered by the Swedish chemist Jo¨ns Jacob Berzelius in 1817 and has been recognized as an essential trace element for many life forms including man since 1957. As an essential trace element, the importance of selenium (Se) in humans is well established, and its deficiency has caused serious health effects in humans, such as Keshan disease. Foods are major natural source of Se, and its levels generally depend on soil Se levels. Since its discovery as an important component of antioxidant enzymes, such as glutathione peroxidase (GPx), thioredoxin reductase (TrxR) and iodothyronine deiodinases (IDD), there has been an increased interest in the study of other Se-containing proteins (selenoproteins) or enzymes (selenoenzymes)].Selenocysteine is recognised as the 21st amino acid, and it forms a predominant residue of selenoproteins and selenoenzymes in biological tissues. The molecular structure of selenocystiene is an analogue of cysteine where a sulphur atom is replaced by Se. Selenium can be measured in whole blood, blood fractions (plasma, serum, red blood cells), hair, nails, and urine. Plasma selenium levels below 0.6mM (40–50 ng/ml) are considered deficient, and risk of toxicity occurs at levels higher than 2mM (160 ng/ml), with reports of toxic effects at concentrations higher than 3mM (250 ng/ml)The increased production of ROS (reactive oxygen species) can exert oxidative stress in the physiological system, and if excess ROS are not properly regulated they can cause damage to cellular lipids, proteins and DNA. The damage caused by ROS has been linked to various human diseases, including heart diseases. The presence of ROS can also cause the oxidation of lowdensity lipoprotein (LDL),and it has been reported to be associated with initiation of atherogenesis in heart diseases. One hypothesis is that the presence of high Se as antioxidant selenoenzymes and selenoproteins may help to reduce the production of oxidised LDL and, therefore, would reduce the incidence of heart diseases.Thioredoxin reductase plays a significant role in preventing the development of atherosclerosis by reducing oxidative stress and increasing NO bioavailability

BackgroundSchoolchildren spent most of time in school and the school environment is one of several settings thatcan influence children’s food choices and eating habits. Schools can ensure that the available food andbeverage options are healthy and help young people eat food that meets dietary recommendations forfruits, vegetables, whole grains, and nonfat or low-fat dairy products.GoalTo assess quality of common foods and diet in school environmentsObjectives:1. Define food items and groups in school environment;2. laboratory analysis in sample foods on “School lunch” and around school environmentMaterial and MethodsThirty public and private schools from six districts of city of UB were randomly selected from a list of allschools. Laboratory tests were analyzed total 250 samples from school canteens and within 250 metersdistances around sampled schools.ResultSchoolchildren are exposed to a wide range of unhealthy food and beverages in the school environmentand healthier food and drink’s choices are very limited in these settings. The high availability of differentvarieties of unhealthy food and drinks at affordable prices makes these products the most preferablechoices for children. Overall, 46.5 percent of schoolchildren were served in school canteen and 33.9percent of schoolchildren were served outside of schools including shops and buffet. Main factors of foodchoice were first, like eating (30.2%), food price (27.8%), hungry (16.7%) and food advertisement was6.3% among schoolchildren. Most of common foods (92.5%) were analyzed with high in salt, sugar andlow content of vitamins and minerals around school environment. There was very high sugar content per100 gram products for instance, “Batos” ice-cream 22.75 gr, “Iberry” ice cream 14.05 gr and, “Granat”juice 1364 gr. In addition, fat content is also high in schoolchildren’s common food consumption. Fatcontent tested 31.4gr in chips and 30.6 gr in pie, cake and 26.9 gr in biscuits per 100 gr products.

Introduction. Population life expectancy and health status are directly related to adolescent health,as many chronic disease conditions are affi liated with adolescence. The Mongolia GSHS, 2010 wasstudied dietary behavior and some risk factors belong to non communicable diseases of secondaryschoolchildren among surveyed children. Overall, 5.5% of students have eating habits that are healthybased on the WHO recommendations developed form the Mongolian Ministry of Health. One in sixstudents (15.9%) ate fruits and vegetable fi ve or more times per day. 27.3% of students consumeddairy products valuable for childhood growth two or more times per day. More than one in four students(27.6%) drank carbonated beverages and soft drinks one or more times per day.Findings of this survey show that attention is needed into adolescence and period of young children toprevent and decrease NCD and thus this was a background of our study.Goal. Determine schoolchildren’s food consumption and dietary behavior.Material and Methods. The 2013 Mongolia GSHS employed a two-stage cluster sample designto produce is preventative sample of students in grades 7-12. In total, 60 schools (25 schools fromUlaanbaatar city and 35 rural, respectively) and 203 classes were selected to participate in the MongolianGSHS.School level: The fi rst-stage sampling frame consisted of all schools (urban, rural, public, or private)containing any grades 7-12. Schools were selected systematically with probability proportional to schoolenrollment size.Class level: The second-stage sampling frame consisted of randomly selecting intact classrooms(using a random start) from each school to participate. All relevant classes in each selected school wereincluded in the sampling frame. All students in the sampled classrooms were eligible to participate in theGSHS (2013).“Nationwide health survey based on schools in Mongolia 2013” covered 5393 schoolchildren (age 12-18) from 59 public and private schools. Coverage rate was 89% and total response rate was 88%.Result. According to the WHO recommendations, 18.6 percent (95%CI 17.2-20.1) of students consumedfruits and vegetables fi ve or more times per day. Additionally, consumption of fruits and vegetablesdecreases as age and grade increase.Totally, 31.3 percent (95%CI 29.3-33.3) of students consumed dairy products such as milk, yogurt andcheese two or more times per day in the past month. In addition, 33.0% (95%CI 30.5-35.5) of malestudents eat dairy products compared to 29.5% of female students; that is males consume 3.5% morefruits and vegetables; however there is no statistical difference. On the other hand, 43.4 percent ofchildren aged 12 years or younger consumed dairy products, 32.9 percent of children aged 13 to 15years old and 24.8 percent of children aged 16 years old or older consume dairy products; thus, showinga decreasing trend with age.One of three (33.6%) of students drank carbonated beverages one or more times per day during the pastmonth. Consumption of carbonated beverages differed between males and females (37.6% vs. 29.7%)and increased by age. By age group, high consumption of carbonated and soft drinks was observedamong students aged 16 years old or older (34.4-35.2 percent), while 33.8 percent of children aged13-15 years old, and 29.4 percent of students 12 years old or younger consumed carbonated and softdrinks.Amongst all students, 55.3 percent (95%CI 52.0-69.3) ate breakfast “usually or always”, 26.1 percentate breakfast “sometimes”, and 13.7 percent ate breakfast “rarely or never”. About 1.9% of studentswent hungry to school “usually or always” during the past one month because of insuffi cient food in theirhome.Among participated school children, 26.4 percent (95%CI 21.5-31.9) of students ate fast food three ormore times within the last seven days at restaurants such as Max Burger, Mondonald and their schoolcafeteria. Percentage of students that ate regularly at fast food restaurants or school canteens wasincreased by 8% than the indicator of the previous survey result.Conclusion1. Fruits and Vegetables: One in fi ve students consumed fruits and vegetables in accordance withthe dietary guidelines for healthy eating and this indicator are increased by 2.7% compared to theprevious study.2. Dairy products: Consumption of dairy products is increased by 4% compared to the previous study;however, it is decreased with age.3. Carbonated Beverages: Consumption of carbonated beverages by students was at similar level inboth, urban and rural areas, and it is increased by 6 points from the previous study level, especiallyhigher consumption was observed among male students.4. Fast Food: Percentage of students that ate regularly at fast food restaurants or school canteens wasincreased by 8% than the indicator of the previous survey result.

IntroductionAfter discovering an important biological function of selenium, selenium content and its deficiency arestarted to be extensively studied in numerous epidemiological studies that have been conducted inmany countries in the world. In Mongolia, as a country geographically located in unstable climate zone,there are no studies conducted on selenium so far since the last century, except one study determiningselenium deficiency signs in livestock.GoalTo determine selenium (Se) content in Mongolian wheat and livestock meatMaterials and MethodsIn total 30 samples of wheat planted in Dornod, Uvs, Tuv and Selenge aimags of Mongolia and 142samples of Mongolian beef and beef imported to Russia from China, respectively were underwent inlaboratory analysis. Wheat was hold at room temperature to reach the regular weight, and muscletissue of meat was dried in a lofildryer. Dried wheat and meat were then powdered into homogenousconsistency and were kept in air proof polyethylene container at room temperature until being analyzed.Selenium content was determined by fluorometric method [2].ResultsOut of wheat sorts grown in Mongolia, selenium was detected in extremely low level in wheat of Khalkhingol sort of Dornod aimag (7±1 mkg/kg) and Selenge sort of Selenge aimag (8±1 mkg/kg), and in wheatsold in retail outlets of Baruunturuun soum of Uvs aimag (7±1 mkg/kg) and Khongor soum of Darkhan-Uul aimag (8±1 mkg/kg). However, selenium content was relatively higher in wheat samples of Darkhan34 sort of Baruunturuun soum of Uvs aimag (31±5 mkg/kg) and of Altaiskaya sort of Jargalant (29±3mkg/kg) and Bornuur (32±1 mkg/kg) soums of Tuv aimag, and in sample of retail wheat of Sagil soum(29±1 mkg/kg) of Uvs aimag.When determined the selenium content in Mongolian livestock meat, in average, the selenium contentwere 109-296 mg/kg in beef, 94-200 mg/kg in lamb, 120-225 mg/kg in horse meat and 124-197 mg/kg ingoat, and the differences were not statistically significant (p>0.5). The highest selenium content of 400mg/kg was detected in horse meat of Govi-Altai aimag.Conclusion: The selenium content in wheat and livestock meat which are the mean stable food forMongolians is considerably low.

Background: Disorders in the human body due to selenium defi ciency are associated with geographiclocation or environment, especially selenium concentrations in water and in soil. Selenium concentrationsin the blood of populations around the world, varies greatly. To date, no research has been conducted onaverage serum selenium level of adult Mongolians.Goal. To conduct a comparative study on the average serum selenium level of adult Mongolians bygeographic regions.Materials and Methods. In this study were participated 2339 healthy subjects randomly selectedfrom sampling units based on 4 geographical regions of Mongolia. For the study were used thequestionnaire and biochemical methods. Blood samples were collected from all subjects and serumselenium concentration was measured by the thermo fi sher scientifi c analyzer using atomic absorptionspectrophotometer method.Result: The mean serum selenium level in adult Mongolians was 0.78 μmol/l. A comparative analysisshowed a statistically signifi cant difference (ð<0.0001) in the mean serum selenium level of adultMongolians living in different geographic regions. In particular, the mean serum selenium level ofadult Mongolians was 0.85 μmol/l in the Altai Mountain, 0.57 μmol/l in Khangai mountain, 1.0 μmol/l inGobi, 0.71 μmol/l in Dornod steppe regions and thus indicator was 0.75 μmol/l among adult citizens ofUlaanbaatar. Majority of residents living in Khangai mountain and Dornod steppe regions were at a riskof selenium defi ciency.Conclusions:1. Comparative analysis of the average serum selenium level of adult Mongolians by region showedthat the Gobi region has highest (1.0 μìîë/ë) and Khangai region has the lowest (0.57 μìîë/ë).2. Study fi ndings showed that 7 – 8 individuals out of 10 residents of Dornod steppe and Khangairegions were at the risk of selenium defi ciency.

IntroductionClimate change has already been started in Mongolia. The frequency of natural disaster such as drought, zud disaster, snow storm, hot and cold extreme weather, and earthquake has increased every year. As per daily information of meteorological stations, annual air temperature has been increased since 1960. Children is more sensitive in varies environmental impacts compared with adults and adverse effects caused by climate changes can be remained in all lives and it can be irreversible. Relation between climate change and children’s health is one of the issues which have not been studied yet. The purpose of this study was to investigate relationship between respiratory diseases of children and climate change as well as some air pollution parameters.Materials and MethodsStudy was carried out by cross-sectional study design. According to the regional climate classification of Mongolia, Zavkhan, Selenge, Dornod and Umnugovi provinces was selected as a target area of the study. The relationship between respiratory disease of children and climate change as well as some air pollution parameters were analyzed based on statistical data of Health Departments and Family doctors’ documentation of those provinces for prevalence and incidence of respiratory disease among the children aged 0-16 and daily information of climate parameters such as air temperature, air pressure, relative humidity and precipitation status taken from selected provinces Meteorological Departments and data for air quality basic parameters (SO2, NO2, CO2, PM 10) taken from Air Quality Department of Ulaanbaatar city.ResultsRespiratory diseases among the target ages were registered highly (70.7%) in age of 0-5 years. According to the comparison results in incidence rate of respiratory diseases by region, upper respiratory tract diseases (J09-J18) and lower respiratory tract diseases (J20-J22) were registered in Umnugovi aimag (254.75 and 50.42cases per 10000 children)which belong to very dry and warm regions and Dornod aimag (121.62 and 26.11 cases per 10000 children) which belong to dryish cold regions in 2010. Respiratory tract diseases (J09-J18, J20-J22) were correlated weak indirectly with average air temperature and minimum average air temperature. It was correlated weak directly with wind speed and air pressure. Respiratory tract diseases (J09- J18, J20-J22) were correlated directly with SO2 concentration in air (r=0.269, p>0.001) and NO2 (r=0.286, p>0.001).ConclusionClimate change and air pollution could be influenced on the increase of morbidity of respiratory tract infections. Some air pollution parameters such as SO2, NO2 and PM2.5 and air temperature, air pressure, relative humidity and wind speed are the causes of respiratory tract infections among the children aged 0-16.