As obesity continues to be a global health challenge presenting various negative impacts on health outcomes and healthcare costs, there is a growing need for pharmacological interventions to address the issue. Glucagon-like peptide-1 receptor agonists have shown potential in treating obesity and reducing the risk of type 2 diabetes, but there is a lack of studies comparing adverse events across different populations. This review intends to indirectly compare the adverse events of available glucagon-like peptide-1 receptor agonist pharmaceuticals for treating overweight or obesity in adults, adolescents, and children.