A Study to Measure Calorie Consumption and Usage in Participants With Obesity Using LY3437943

Inclusion Criteria: * BMI greater than 30 kg/m2 * History of at least 1 self-reported unsuccessful dietary effort to reduce body weight Exclusion Criteria: * Change in body weight of greater than 5 kg (11 pounds) within 3 months prior to start of study * Any of the following treatments for obesity within 1 year prior, or plan to undergo any of these during the study period: liposuction, cryolipolysis, or abdominoplasty * Prior or planned bariatric or gastric sleeve surgery, endoscopic therapy, or device-based therapy for obesity * Type 1 or Type 2 Diabetes, history of ketoacidosis, or hyperosmolar state * Family or personal history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome Type 2 * Acute or chronic hepatitis * Had within 90 days prior: acute myocardial infarction, cerebrovascular accident (stroke), coronary artery revascularization, hospitalization for unstable angina, or hospitalization due to congestive heart failure * History of active or unstable major depressive disorder or other severe psychiatric disorder within 2 years prior * History of chronic or acute pancreatitis * Blood transfusion or severe blood loss within the last 3 months or hemoglobinopathy, hemolytic anemia, sickle cell anemia * Clinically significant multiple or severe drug allergies * Started treatment with or changed dose within 12 months prior any medications that are associated with significant weight gain * History of substance use disorder