Aim. To define the mineral content in foods supplied for preschool facilities in Irkutsk by laboratory methods. Methods. Food samples (whole cow milk, white bread, potato, apple, beef, «Gerkules» oat) were analyzed. The results were compared with data of food chemical contents used as reference values by «Center for Biotic Medicine» for evaluating food mineral contents. Analytic tests were performed using atomic emission spectroscopy with inductively coupled argon plasma and mass spectroscopy with inductively coupled argon plasma. Results. Food samples analysis in preschool facilities of Irkutsk revealed that these samples have significant differences in mineral contents compared with foods used in the European part of Russia. In common, examined foods contains less macro- and microelements, especially Ca, Fe, P, Si. In animal products (milk, meat) the differences were more significant both in number of elements and in absolute differences, compared to plant food (bread, potato, apple, cereal). Animal products contains less zinc. Conclusion. The gained data highlight the need for improving children’s catering, as well as for development and use of preventive measures aimed to reduce risks for diseases associated with macro- and microelements deficiencies.

Among the risk factors that have priority in shaping the health of the population, a leading place is held by a rational nutrition. Presented results indicate to the absence of a stable group eating regularly, with the rational regularity and having all the necessary meals and the recommended food set. In the population of the adult people of the city of Irkutsk there is revealed the role of the nutritional factor in the formation of morbidity rate level of the adult population. It was found that the risk of diseases of the circulatory system accounted of 2.5 (95% CI: 2.1-3.6), for infectious and parasitic diseases - 2.4 (95% CI: 1.7-3.5), for the endocrine system - 2.2 (95% CI: 1.4-3.4), andfor the urinary system - 2.3 (95% CI: 1,7-3,0).

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Introduction. Based on the average consumption of foodstuff, as well as data of the chemical composition of foodstuff, there are calculated the hazard coefficients and indices, individual risk for men working at the "Erdenet" mining and processing plant in Mongolia. The study aims to assess the health risks of mining and processing workers in Mongolia when exposed to essential Cu, Mo, Se and toxic elements As, Cd, Pb, Hg. Materials and methods. The content of essential and toxic elements in food rations was calculated from the data of multi-element analysis of samples of local foodstuff, conducted by inductively coupled plasma mass spectrometry. 30 samples of foodstuff were examined for the content of elements: essential Cu, Mo, Se and toxic As, Cd, Pb, Hg. The calculation of carcinogenic and non-carcinogenic risk was carried out in accordance with the guidelines P 2.1.10.1920-04. Results. An imbalance of the average daily intake of essential elements with the diet in the body of workers has been established: selenium consumption is 80.23% lower than the recommended norms of physiological needs; while the consumption of molybdenum is exceeded by 40.97%. The main sources of molybdenum are bread and bakery products (73.9%) produced from local raw materials. Limitations. Our study has a number of significant uncertainties related to the identification of the danger of individual toxicants, incomplete ideas about the levels of consumption of vegetables and fruits and their content of essential food substances and contaminants that were not included in the study of chemical composition. Conclusions. The calculated index of the non-carcinogenic hazard of toxic elements for the health of employees was 0.52, where 0.3 is by arsenic. The main contribution to the total HQ is the intake of essential and toxic elements from food (96.86%), while only 3.14% comes from drinking water.

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