Which diabetes drug classes are commonly associated with weight loss?

• A. GLP-1 receptor agonists and SGLT2 inhibitors
• B. Sulfonylureas and meglitinides
• C. Thiazolidinediones
• D. DPP-4 inhibitors

Answer: (A)

Weight loss with diabetes meds mainly comes from two classes: GLP-1 receptor agonists and SGLT2 inhibitors. GLP-1 receptor agonists mimic incretin effects, which boost glucose-dependent insulin release but also suppress appetite and slow gastric emptying. That combination reduces caloric intake and often leads to weight loss. SGLT2 inhibitors work by blocking glucose reabsorption in the kidneys, causing glucose—and thus calories—to be lost in the urine. This creates a net caloric deficit that tends to reduce body weight.

Other common diabetes drug classes have different weight effects: sulfonylureas and meglitinides increase insulin secretion and often promote weight gain; thiazolidinediones can cause weight gain due to fluid retention and fat gain; DPP-4 inhibitors are generally weight neutral.