Related Experiment Video
Updated: Jun 28, 2026
Multidisciplinary Approach to Obesity Management: A Case Report
Published on: May 30, 2025
Seeing Beyond GLP-1: A Systems View of Sustainable Obesity Care
Yeeli Mui1,2, Megan R Winkler3, Becky Ramsing2
1Human Nutrition Program, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
Introduction:
Glucagon-like peptide-1 (GLP-1) receptor agonists represent a major therapeutic advancement, producing substantial weight loss and rapidly reshaping clinical practice, commercial markets, and policy discussions. Their accelerating adoption, however, is unfolding alongside decades of public health progress to address the complex drivers of obesity. Without integration into a broader systems-based approach, growing reliance on GLP-1 therapies risks reinforcing a reactive, treatment-driven model of obesity management that is costly, difficult to sustain, insufficient for addressing root causes, and likely perpetuating existing health inequities.
Methods:
Drawing on a synthesis of existing literature and emerging clinical evidence, we apply Habits of a Systems Thinker to examine: (1) the promises and pitfalls of growing dependence on GLP-1 therapies; (2) how a systems thinking lens can illuminate unintended consequences and reveal overlooked leverage points; and (3) how dietitians and other healthcare providers can strengthen systems-based dietetic practice to promote health equity, enhance obesity care delivery, and support lasting health outcomes.
Results:
We identified dominant mental models, gaps in system connections, and feedback loops that shape both obesity management and the integration of GLP-1 therapies. We also highlight potential unintended consequences and outline opportunities to adapt and act strategically within the obesity care system.
Conclusion:
Dietitians hold a critical yet underutilized role, constrained by structural barriers. Fully leveraging their expertise will require system-level changes, including integrating training on a systems approach to GLP-1 therapies; strengthening connections to local and regional food resources to improve access to healthy foods; advocating for reimbursement reforms that support dietitians' contributions to comprehensive, systems-oriented obesity care; and elevating dietitians' roles as citizens to advance equitable obesity care.
Insights
Glucagon-like peptide-1 (GLP-1) receptor agonists offer weight loss but risk a reactive obesity model. Integrating these therapies into a systems approach is crucial for sustainable, equitable obesity care.
Area of Science:
- Obesity Medicine
- Public Health Systems
- Health Equity
Background:
- Glucagon-like peptide-1 (GLP-1) receptor agonists are transformative obesity treatments, impacting clinical practice and markets.
- Their rise occurs amidst ongoing public health efforts to address obesity's complex drivers.
- Over-reliance on GLP-1s without a systems approach may perpetuate inequities and a costly, unsustainable treatment model.
Purpose of the Study:
- To analyze the implications of increasing GLP-1 therapy dependence using systems thinking.
- To identify unintended consequences and leverage points in obesity management.
- To guide healthcare providers, particularly dietitians, in enhancing systems-based practice for equitable obesity care.
Main Methods:
- Synthesis of existing literature and emerging clinical evidence.
- Application of "Habits of a Systems Thinker" framework.
- Examination of GLP-1 therapy integration within the broader obesity care system.
Main Results:
- Identified dominant mental models, system connection gaps, and feedback loops influencing obesity management and GLP-1 integration.
- Highlighted potential unintended consequences of current approaches.
- Outlined strategic opportunities for adaptation within the obesity care system.
Conclusions:
- Dietitians possess critical expertise but face structural barriers in obesity care.
- System-level changes are needed to leverage dietitians' roles effectively.
- Recommendations include integrated training, improved food resource connections, reimbursement reform, and policy advocacy for equitable obesity care.
Related Concept Videos
01:24Obesity
01:25Pharmacokinetics in Obese Patients: Drug Absorption and Distribution
01:20Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion
01:24Glucagon-like Receptor Agonists
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...
01:30Regulation of Food Intake
01:18Models of Health Promotion and Illness Prevention II
The agent-host-environment model states that disease results from...