Obesity is a global health challenge due to its high prevalence and increased related morbidity and mortality. Accordingly, creating a platform to enter data on patients with obesity, treatment process and outcome is mandatory. The objective of this registry is to provide such a database regarding Iranian adults with obesity in order to facilitate future research designs and effective decision making to control this condition.

: After obtaining informed consent from eligible individuals, a practical questionnaire will be used to gather information about basic characteristics, family history, past medical history, regular medications, dietary intakes and other relevant information of adults with obesity. This data along with the results of laboratory tests, physical examination, and anthropometric measurements will be registered into the registry system by trained members of the team during an in-person visit. Patients will undergo a specific treatment plan based on the multidisciplinary medical team's decision. Then, changeable variables and the outcomes of their treatment process will be registered later in the follow-up sessions.