Background: carbonated drinks are composed of co2, phosphoric acid, sugars, coloring and flavoring agents and caffeine. Carbonated drinks cause serious complications like teeth decay, osteoporosis, obesity and type 2 diabetes. The aim of the study is to assess the awareness about the hazards of carbonated drinks among the medical students. Subjects and Methods: Cross–sectional study was conducted to assess the awareness of the hazards of carbonated drinks among female medical students in King Faisal University in Al–Ahssa, Saudi Arabia. A questionnaire was prepared in English in relation to the knowledge, altitude and practice and was distributed to 50 students. Result: Out of all participants (94%) had knowledge about ill effect of carbonated drinks. Conclusion: Appropriate health education for the students should be incorporated. An additional strategy should implemented by governments to suppress soft drinks’ advertisements and raise its sales tax to combat this problem.