Obesity Treatment Effectiveness and Safety Registry

Inclusion Criteria: To be eligible to participate in this registry, an individual must meet all of the following criteria: 1. In the opinion of the investigator, the subject is considered a suitable candidate for treatment with a commercially available systemic obesity medication (see Enrollment Eligible Treatments). While subjects do not need to start an obesity medication at the time of registry enrollment, those prescribed a GLP-based or non-GLP-based obesity medication must be initiating the medication for the first time. 2. Is at least 18 years of age or older and has attained the legal age for consent to procedures involved in the research, under the applicable laws of the jurisdiction in which the research is being conducted at the time of enrollment. 3. Is willing and able to consent to participation in the registry. 4. Is willing and able to complete registry-related forms electronically via personal devices 5. Is willing and able to provide first name, last name, email address, language, and primary time zone for electronic data collection account creation. 6. For US subjects only, is willing and able to provide Personally Identifiable Information which includes full legal name, sex at birth, date of birth, and home address zip code. Exclusion Criteria: An individual who meets any of the following criteria will be excluded from participation in the registry: 1. Has Type 2 diabetes (T2D). 2. Is participating or planning to participate in a blinded clinical trial.