Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/9/2025

GLP-1 Receptor Agonists in Disordered Eating: Safety Concerns and Clinical Recommendations

Gastrointestinal Adverse Effects

  • The gastrointestinal adverse effects of GLP-1 receptor agonists, including nausea (40% with liraglutide), vomiting (16%), diarrhea, and constipation, could be particularly problematic in eating disorder populations where these symptoms may trigger or worsen disordered eating behaviors 1, 2

Metabolic and Nutritional Safety Concerns

  • GLP-1 receptor agonists delay gastric emptying, which can impact absorption of oral medications and may worsen symptoms in patients with gastroparesis—a common comorbidity in eating disorders 1, 4

Restrictive Eating Disorders

  • The appetite-suppressing effects and weight loss outcomes (14.9-20.9% body weight reduction) of GLP-1 receptor agonists directly contradict treatment goals in restrictive eating disorders 3

Critical Contraindications

  • The American Gastroenterological Association recommends that GLP-1 receptor agonists be contraindicated in patients with personal or family history of medullary thyroid cancer or multiple endocrine neoplasia syndrome type 2 1, 3
  • The American Society of Anesthesiologists recommends that GLP-1 receptor agonists be contraindicated in patients with active gastroparesis or severe gastrointestinal motility disorders 2
  • The American Heart Association recommends that GLP-1 receptor agonists be contraindicated in patients with recent heart failure decompensation 5

Monitoring Requirements

  • The American Gastroenterological Association recommends assessing nutritional status regularly, as the combination of reduced food intake and gastrointestinal side effects of GLP-1 receptor agonists may lead to nutritional deficiencies 1, 3