Experts Fear GLP-1 Drugs Could Trigger Teen Eating Disorders

As a psychiatrist specializing in eating disorders, Kim Dennis, MD, has seen firsthand the complex relationship between obesity treatment and mental health in adolescents.

Now, with the rising popularity of medications like Ozempic for weight loss, she fears she will care for more teens with eating disorders who are seeking glucagon-like peptide 1 (GLP-1) agonists or who have developed a disorder while taking them.

“We haven’t seen patients yet, but I’m sure they are on their way,” Dennis, a clinical assistant professor in the Department of Psychiatry at the University of Illinois College of Medicine in Chicago, said. She is also the co-founder and chief medical officer of SunCloud Health, an outpatient eating disorder treatment center in Illinois.

Dennis’ concerns reflect a growing unease among eating disorder specialists as obesity medications gain traction for adolescent use. A recent study published in JAMA Pediatrics showed nearly 80% of teens in treatment for obesity reported symptoms of disordered eating at the outset of an intervention. These included signs of binge eating and loss of control.

The randomized clinical trial, conducted from 2018 to 2023, examined 141 adolescents with obesity undergoing interventions like low-energy diets or intermittent energy restriction. Almost half scored as having risk for an undiagnosed eating disorder, as defined by the Eating Disorder Examination Questionnaire (EDE-Q).

At the end of the intervention, many teens continued to have symptoms of disordered eating, while a smaller group was newly scored as having a risk for an eating disorder.

The findings illuminate a significant challenge for pediatricians and primary care clinicians: Balancing effective weight management with the risk of exacerbating or triggering eating disorders, said Hiba Jebeile, PhD, a research dietician at The Children’s Hospital at Westmead in Westmead, Australia, and the study’s lead author. Adding weight loss medication on top of the equation can further complicate care.

“It is helpful for obesity and eating disorder services to work together, with clear referral pathways, to manage these adolescents,” Jebeile said.

The US Food and Drug Administration approved semaglutide for weight loss in adolescents aged 12-17 years in December 2020. One study found that the number of adolescents prescribed GLP-1 receptor agonists (GLP-1 RAs) for type 2 diabetes and weight management rose from 8722 to 60,567 between 2020 and 2023 — a nearly sevenfold increase.

“The number of adolescents taking these medications is going up because they work,” said Suzanne Cuda, MD, medical director of Alamo City Healthy Kids and Families, a medical weight management clinic in San Antonio. The medications have been shown to treat type 2 diabetes, lower blood pressure, and reduce the risk for cardiovascular diseases.

“The younger you are, the better the outcome,” Cuda said.

How GLP-1 agonists may affect adolescents in the long run is not yet clear. Existing studies on GLP-1 medications in patients with eating disorders have shown mixed results. Some studies indicate that the drugs decrease binge episodes for those with binge eating disorder or bulimia nervosa. However, these studies had small sample sizes and measured only short-term effects, leaving long-term outcomes and risks unknown.

Traditional treatments for eating disorders emphasize regular eating patterns, body acceptance, addressing weight stigma, and improving attunement to hunger and fullness cues — approaches that may conflict with the effects of GLP-1 agonists. These drugs suppress appetite, alter metabolic signals, and may unintentionally reinforce weight loss as a primary goal, creating a potential disconnect between the aims of recovery from eating disorders and the biologic effects of the medication, experts said.

Cuda said she has cared for adolescents with diagnosed eating disorders in her practice who are seeking GLP-1 agonists. She said she first works with patients to treat the underlying disorder before prescribing medication.

“One of the concerns is the extreme reductions in calories that could be induced by GLP-1 RA in children and adolescents,” she said. Unlike adults, adolescents use caloric energy not just for physical activity but also for growing and developing, she said.

“They can’t catch up on that growth and development,” she added.

The National Eating Disorders Association raised concerns about the potential misuse of these medications and their potential to exacerbate eating disorder behaviors in people who are already at a higher risk of developing one of the conditions, including those with existing mental health disorders, stress, who have already dieted, and who have experienced weight-centric bullying.

Clinicians should be on the lookout for patients seeking GLP-1s who present with symptoms of an eating disorder that may be less apparent, such as picky eating, insomnia or difficulty sleeping, or, for girls, irregular menstrual periods, Dennis said. These patients may be more likely to go undiagnosed or misdiagnosed. Research also suggests that people of color are less likely to be diagnosed or receive specialty care for eating disorders.

Discussions between patients and clinicians about obesity treatment prior to prescribing provide a crucial opportunity to screen and monitor for disordered eating, which Dennis said does not universally occur currently.

Dennis recommended initial assessments using validated screening tools like the EDE-Q and the Center for Epidemiologic Studies Depression Scale Revised, 10-Item Version.

Ongoing monitoring throughout treatment is essential, with initial monthly check-ins that include dietary counseling to detect subtle changes in eating behaviors or attitudes toward food and body image, Cuda said.

The Obesity Medicine Association (OMA) has stressed the importance of a collaborative approach involving connections with mental health professionals specializing in eating disorders and dietitians.

“If you have a chance to send them to an obesity medicine specialist, you should do that,” said Cuda, who co-authored the OMA statement. “It’s impractical to expect a primary care physician to do everything: Screen for dietary disorders, do a full dietary counseling, follow up on their activity.”

For patients showing signs of disordered eating, clinicians should avoid recommending restrictive dietary approaches, like cutting out food groups such as carbohydrates or a restricted calorie goal. Instead, they can suggest focusing on healthier lifestyle habits and referring to a psychotherapist, the experts said. Clinicians also should be prepared to adjust or pause GLP-1 agonists if disordered eating disorder symptoms worsen.

“I think a weight-agnostic approach where the focus of care is not weight loss but increase in health protective behaviors and nutritional intake is safest for all kids, especially those with eating disorders or eating disorder risk factors,” Dennis said.

Various authors of the eating disorder study reported receiving grants, advisory board fees, and speaker fees from entities including the National Health and Medical Research Council of Australia, Eli Lilly, Novo Nordisk, Nu-Mega Ingredients, and the National Institutes of Health, among others.

Lara Salahi is a freelance journalist living in the Boston region.