OBJECTIVES: The objectives of this study were to measure saccharin concentration in various soft drinks, to compare the determined saccharin concentration with the declared concentration of the observed sweetener and with the maximum permissible concentration of this compound in refreshing soft drinks, to examine the frequency of consumption of soft drinks within the student population of Osijek and to estimate the average amount of saccharin intake, to examine the frequency of Internet addiction among the student population of Osijek and to assess whether there is a connection between the observed variables. STUDY DESIGN: The study was conducted as a cross-sectional study. PARTICIPANTS AND METHODS: An online questionnaire surveyed 792 students of different academic years from all universities in Osijek. The concentration of saccharin was determined in 19 samples of soft drinks available on the Osijek market by high-performance liquid chromatography with a diode array detector. RESULTS: Median level of saccharin found in soft drink samples was 19,76 mg/L and median estimated daily intake of saccharin was 4,0 mg. 85,7 % of the university students consume soft drinks with statistically significant more often consumption of the soft drinks by men. 39,8 % of the university students in Osijek reported some level of internet addiction. Statistically significant correlation between soft drinks consumption and internet addiction was not found. CONCLUSION: Measured saccharin concentrations were below the maximum permissible concentration established by the EU and estimated daily intake of saccharin was under acceptable daily intake. University students in Osijek often consume soft drinks and less than half of them is addicted to internet. There is no correlation between the observed variables.