The aim of this study was to determine the relationship between body mass index (BMI) and body fat percentage (% BF) among 1000 healthy adolescents (ages, 15-19 y) from different areas in Serbian Republic (Federation of Bosnia and Herzegovina), during 2014. In this study examined adolescents were divided into four groups after calculating BMI, and after the correlation between BMI and %BF. The obtained results show that there are significantly more (p < 0.01; p < 0.05) boys (ages, 15-18) with a healthy weight than girls. The correlation between BMI) and %BF was very strong, positive, among examined girls (r = 0.975) and boys (r = 0.752). In a group with normal % BF and increased BMI there were significantly more (p < 0.01) boys than girls, and the opposite situation were in a group with increased BMI and % BF, where it was significantly more (p < 0.05) girls than boys. Obtained results show that the majority of adolescents in the Serbian Republic have normal body weight, with a tendency of increase, especially among girls who are more prone to unbalanced nutrition.

The period of adolescence is characterized by rapid physical, biological and social changes, which is reflected in a specific daily rhythm of work, behavior and diet. Diet of adolescents is characterized by eating large amounts of fast food. Social changes of population that have occurred in recent years affect the behavior of adolescents and their eating habits. The aim of the research in this paper was to determine the attitude of high school students from several towns in the Republic of Srpska (Bosnia and Herzegovina) toward eating and consumption of fast food as food products that are commonly found in their menu. In this paper, a survey is conducted among high school students of both sexes aged between 15 and 18. The survey included 12 questions that can be classified into two groups: knowledge of fast food and eating habits.Half of the interviewees (49.73%) believe that there is no particular reason for choosing fast food, while one-third (33.78%) choose this kind of food products because of their taste. 51.60% is careful about the amount of fast food that they eat. Over half of the interviewees (58.09%) do not have a reason to give up consuming fast food, and 31, 58% do it so because they think that this diet is harmful to health.For breakfast 19,11% of the interviewees eat croissants and buns, sandwiches or candies that they buy on their way to school. During and after meals 33.62% of the interviewees usually drink water, and 21.53% drink refreshing fizzy drinks or fruit juices (21.02% of responses). The amount of fizzy drinks that the interviewees drink during the day goes from one glass (30,09%) to 2-3 glasses (24.7%). The interviewed students mostly like eating meat and vegetables (37.82%), fruit (23.06%), but they do not like eating vegetarian dishes (31.04%), strongly flavored dishes (18.07% ) and meatless dishes (17.24%).

Abstract:The period of adolescence is a period of rapid biological, physical and social changes. Diet of adolescents is based on eating large amounts of fast food. The aim of this research was to determine the relationship between high school students in several cities of the Republic of Srpska (Banja Luka, Gradiška, Srbac, Teslić and Čelinac) and their attitude towards food and the consumption of fast food, as well as food products that are commonly found in their menu.In this paper, a survey among high school students of both sexes, aged between 15 and 19 was conducted. The survey included 12 questions that can be classifi ed into three groups: general information about the students, the data on physical activities of adolescents who consume "fast food" in their diet and information about their knowledge about the impact of the diet on their overall health.A great number of students (89.90%) do not think that fast food belongs to the group of "healthy" food, and they think (82.70%) that it has impact on their overall health. More than half of the students (52.90%) are satisfi ed with their body weight. There is about the same number of students who think that they are overweight (23.90%) or underweight (23.20%). The vast majority of students (92.80%) have not still had acute health problems due to the consumption of fast food. 58.60% of the students are partially satisfi ed with their diet, 31.10% are satisfi ed with their diet, and 61.3% of them would like change their diet.

Phthalates are esters of phthalic acid and aliphatic alcohols. It is widely used in everyday life, and can be used as a plasticizer, solvents and additives in many products, from food packaging to items of general use. Plastic materials are widely used in food industry and potentially can be source of phtalates in food. Phtalates can be present in food as a result of contamination of food. Phtalates in food, as a result of contamination of food or migration from packaging can jeopardiye human health. This work provides an overview of the presence of phthalates in food packaging, its migration into food, as well as the negative impact on human health by consuming and inhaling them.

This paper presents the results of consumer opinion testing (n=1000) on hazards in meat (biological, chemical), as well as consumer opinion about causes of meat contamination from farm to retail. Consumer opinion on sources of meat contamination in households is also presented.