Sužetak. Fizički rast i razvoj djeteta, kao i čitave populacije, sa epidemiološkog gledišta, može da posluži kao osnovna mjera kvaliteta javnog zdmvstva i ekonomskog standarda. Poznavanje stalnih promjena tjelesne grade и pojedinim periodima razvoja djece i adolescenata olakšava razumijevanje samog rasta, razvoja, kao i nutritivnih potreba djece i omladine. Izvršena su mjerenja tjelesne vising i mase, debljine kožnog nabora. nad musculus triceps brachii i ulvrđene vrijednosti indeksa tjelesne mase и grupi od 89 adolescenata. Poređenjem sa referentnim Ф percentilnim vrijednostima, utvrđeno je da 33,7% adolescenata imapercentilne vrijednosti iznad Hi ispod graničnih vrijednosti za dob i pol, najmanje za jedan od navedenih parametara. Od ukupnog broja dječaka i djevojéica evidentiran je visok rast kod 21% dječaka i 9,4% djevojcica. Od ukupnog broja dječaka 22,9% je gojazno, 7% pothranjeno, dok je kod djevočica od ukupnog broja gojazno 6,4%, a pothranjeno 9,3%.

Popularity and use of dietary supplements are constantly growing. Dietary supplements are food products intended to supplement the usual diet and are concentrated source of nutrients or other substances with nutritional or physiological effecst. The purpose of the Paper is to determine frequency of presence of cadmium, lead and mercury metals in dietary supplements based on protein and amino acids that were analyzed during 2018 and 2019 at the Public Health Institute of Republic of Srpska in Banja Luka. Content of metal was determined by the Atomic Absorption Spectrophotometry method. No health defective samples were identified by public health control, but due to modern frequent use of dietary supplements in various population groups (children, adolescents, pregnant women, athletes, etc.), the aim of the Paper is to raise people’s awareness of the risks, such as heavy metals and artificial sweeteners, colors, prohormones and other chemical risks from dietary supplements since they may be associated with chronic health risks.

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Introduction: Controlling the presence of contaminants or harmful substances in milk and dairy products provides early detection of risks since their presence, even in legally permitted concentration, increases the risk of damaging human health, especially children's health, such as allergic manifestations, and they can have potentially toxic, carcinogenic and genotoxic effects. Aim of the Study: The aim is to determine the frequency of the presence of contaminants in samples of milk and dairy products in the Republic of Srpska from 2010 to 2012 (metals, radionuclides, aflatoxins and residues of antibiotics and pesticides), and especially to point out their public health significance because of possible health risks. The aim of the paper is to emphasize the need for monitoring all the other contaminants in milk and dairy products specified in regulations. Material and Methods: The frequency of the presence of contaminants in the samples of milk and dairy products (n= 407) was determined on the basis of legally prescribed methodology of sampling, chemical analyses and preparation of expert opinion on food safety in accordance with current food regulations. Descriptive statistical indicators were used (a number of the samples, minimum and maximum concentrations). Chi square test (χ 2) of contingency was used for testing the significance of differences in presence of contaminants and residues analyzed and recommended by regulations in samples of milk and dairy products. Results: The results of public health research of contaminants in samples of milk and dairy products indicate that no health defective food samples were determined at tested parameters-metals, radionuclides, aflatoxins, and residues of antibiotics and pesticides. A statistically significant number of samples examined on heavy metal content (83.29% or 339 samples) was determined comparing to the number of samples examined on the other contaminants and residues recommended by regulations in milk and dairy products (χ 2 =1000.776, p<0.001) Conclusion: The data obtained can serve as a basis for further analysis in the context of milk and dairy product sample monitoring. Although samples of milk and dairy products are safe, a long-term exposure to residues of harmful substances results in cumulative effect and damage health, meaning that each early detection of food risk found through continuous controls has a public health significance for preservation and promotion of population health in the Republic of Srpska.

Kratak sadržajUvod. Kontaminanti i ostaci antibiotika u mesu i proizvodima od mesa predstavljaju javnozdravstveni problem i povezani su sa zdravstvenim rizicima. Cilj ovog rada je bio da se utvrdi učestalost kontrole prisustva metala, radionuklida i ostataka antibiotika u mesu i proizvodima od mesa, i da se ukaže na potrebu praćenja svih kontaminanata predviđenih propisima.Metode. Ispitivanje je sprovedeno kao retrospektivna studija na 254 uzorka mesa i proizvoda od mesa iz spoljnotrgovinskog i unutrašnjeg prometa u Republici Srpskoj u periodu 2010-2012. dostavljenih u Institut za javno zdravstvo Republike Srpske. Uzorci su podijeljeni u 4 podgrupe: svježe meso, konzerve mesa, životinjske masti i ostali proizvodi od mesa. Sadržaj metala je određen metodom atomske apsorpcione spektrofotometrije, sadržaj radionuklida metodom gama spektrometrije visoke rezolucije, a rezidue hloramfenikola metodom kompetativne enzimske imunoanalize. Utvrđivanje zdravstvene ispravnosti uzoraka je izvršeno u skladu sa propisima iz oblasti bezbjednosti hrane važećim u periodu istraživanja.Rezultati. Rezultati ovog istraživanja ukazuju da nisu utvrđeni zdravstveno neispravni uzorci hrane za ispitivana obilježja -metale, radionuklide i ostatke antibiotika. Na prisustvo arsena, kadmijuma i olova analizirano je 31,20% uzoraka, a na prisustvo 134Cs i 137Cs 29,98% uzoraka, a rezidue hloramfenikola su analizirane kod manje od 2% uzoraka mesa i proizvoda od mesa. Analiziranjem statističke značajnosti, razlike između vrste analiziranih kontaminanata u uzorcima mesa i proizvodima od mesa i vrste kontaminanata preporučenih propisima, uočava se da su ovi proizvodi statistički značajno češće analizirani na prisustvo arsena, kadmijuma i olova u odnosu na druge preporučene kontaminante (χ 2 = 303,16; p < 0,001).Zaključak. Ispitivanje učestalosti kontrola prisustva različitih kontaminanata u uzorcima mesa i proizvoda od mesa pokazalo je da su ovi proizvodi statistički značajno češće analizirani na prisustvo metala arsena, kadmijuma i olova u odnosu na druge kontaminante predviđene propisima za ovu grupu proizvoda, koje je potrebno kontinuirano laboratorijski pratiti.Ključne riječi: kontaminanti u mesu i proizvodima od mesa, javnozdravstvena kontrola