Research objectives: The aim of this study was to analyze the body weight index (BMI) of students at the Faculty of Dental Medicine and Health Osijek. Study design: Cross-sectional study conducted in March and April 2022 Subjects and methods: 226 students participated in the study, 44 males and 182 females. Data were collected using an anonymous online questionnaire. The questionnaire contained nine closed-ended and three open-ended questions. Results: Data from 226 students were analyzed. The study included 133 (59%) nursing students, 74 (33%) physiotherapists and 19 (8%) dental medicine students at the Faculty of Dental Medicine and Health Osijek. The mean age of all students was 26.1±7.69 years, and the mean BMI was 23.39±3.64 kg / m2, which corresponds to normal body weight. There is no statistically significant difference in BMI between students of nursing, physiotherapy, and dental medicine. No significant difference in BMI was found between students who are physically active and those who are not. Students who are regularly physically active have a slightly lower BMI. There is no statistically significant difference in BMI between students who eat breakfast and those who do not. No difference was found in BMI related to frequency of fruit and vegetable consumption. A statistically significant difference was found between students who consumed fast food daily, whose average BMI was 28.1 kg/m2, while the BMI of students who consumed fast food once a week was 22.57 kg/m2. Conclusion: The average BMI of students at the Faculty of Dental Medicine and Health Osijek is 23.39 kg/m2, which according to the BMI categorization, classifies them as normal body weight, which is expressed in the range of 18.5 – 24.9 kg/m2.