Dr Voss Gibson•
Weight Loss Injections and Eating Disorders: The Conversation That Should Happen First
Before anyone starts a weight loss injection, there's a conversation that should always happen — about your relationship with food, your body image, and any history of disordered eating. It isn't a formality, and it isn't gatekeeping. New research shows that people with eating disorders are using these medications at more than double the rate of the general population, often without their treating clinicians knowing, and Australia's health practitioner regulator has already disciplined prescribers who skipped proper assessment. This article explains why the screening conversation exists, what good care looks like, and why honesty in that conversation is one of the most protective things you can do for yourself.
A note before we begin: this piece discusses eating disorders. If any of it feels personal, support is available — the Butterfly Foundation's national helpline is 1800 33 4673 (1800 ED HOPE), and there's a section near the end just for you.
Why Doctors Now Screen Before Prescribing
What the new research shows
For a while, the overlap between weight loss medications and eating disorders was mostly anecdotal. It isn't anymore. A study published in JAMA Psychiatry in mid-2026 found that 32% of people with eating disorders reported having used a weight loss injection at least once — more than double the rate in the general population. Anorexia nervosa was the most common diagnosis among those surveyed, and more than one in ten reported using the medication in ways other than prescribed.
Researchers behind the study noted a striking gap: no standard protocols yet exist for screening people who request these medications for an eating disorder — even though screening tools exist and take minutes to use. Their conclusion, echoed by clinicians internationally, is that eating disorder screening should become as routine as reviewing a patient's medical history before these prescriptions are written.
Why regulators have acted
Australia's regulator hasn't waited. AHPRA has already disciplined healthcare practitioners for prescribing or supplying weight-loss injectables to patients with disordered eating — including imposing conditions on registration and issuing formal cautions. The recurring problems AHPRA is notified about are telling: inadequate assessment, poor communication with other treating practitioners, and insufficient follow-up.
The president of Dietitians Australia has described hearing of long-recovered eating disorders "re-emerging with a vengeance" after these medications were prescribed — sometimes even pitched to vulnerable patients as a solution to their difficulties with food. This is exactly the outcome proper screening exists to prevent.
So if a doctor asks you careful questions about eating before prescribing: that's not an obstacle. That's what good medicine looks like in 2026.
Disordered Eating vs an Eating Disorder — and Why Both Matter Here
It helps to understand two related but distinct ideas.
An eating disorder is a diagnosable mental health condition — such as anorexia nervosa, bulimia nervosa or binge eating disorder — with formal criteria and, importantly, effective treatments.
Disordered eating is broader: patterns like rigid food rules, intense fear of weight gain, cycles of restriction and loss of control, preoccupation with body shape, or eating that's driven by distress rather than hunger. Many people live with disordered eating for years without a diagnosis — and it still matters medically, because it shapes how safely someone can undertake any weight-focused treatment.
One more point that surprises people: eating disorders affect people of all body sizes. Someone in a larger body can have a serious eating disorder — including anorexia-spectrum conditions — while appearing, on paper, to be an ideal candidate for weight-loss medication. This is precisely why screening can't be skipped based on how someone looks or what their BMI says. Binge eating disorder, in fact, is among the most common eating disorders in Australia and frequently co-occurs with higher weight.
Why These Medications and a Troubled Relationship with Food Can Be a Risky Mix
GLP-1 medications work substantially by suppressing appetite. For the right patient, with support, that's the therapeutic effect. But for someone with an active or dormant eating disorder, switching off hunger can remove one of the body's natural brakes — making severe restriction easier, reinforcing the belief that eating less is always better, and rewarding the very patterns recovery works to undo.
Clinicians also warn about a subtler risk: the medication's effects can mask a problem. Rapid weight loss and reduced eating draw praise in a culture that celebrates both, so warning signs get read as success. And for people who recovered from an eating disorder years ago, the experience of controlled, effortless weight loss can reawaken old thought patterns that took enormous work to quiet.
None of this means these medications are dangerous for everyone, or that people with a past eating disorder can never be considered for treatment — decisions like that are individual, and made carefully with professionals who know your history. It means the combination deserves respect, planning and honest disclosure — not a checkout page.
What a Good Assessment Looks Like
Here's what you should expect from any prescriber taking your safety seriously — and what we believe every weight management service should provide:
- Questions about your relationship with food, not just your weight: past patterns, food rules, loss-of-control eating, how you feel about your body
- Your full history — including any past eating disorder, even one long resolved, and any mental health conditions
- Communication with your other treating practitioners where relevant, such as your regular GP or psychologist
- A whole-person plan — nutrition, movement, mental health and follow-up, not medication alone
- Genuine follow-up — scheduled reviews where someone actually asks how you're eating and feeling, not just what the scales say
And crucially: a good assessment sometimes concludes that this medication isn't the right tool right now — and offers you something better-suited instead, whether that's evidence-based eating disorder support, psychological care, or a different approach to health. Being screened out isn't rejection. It's a clinician putting your long-term wellbeing ahead of a sale. Any service that would never say no to anyone isn't assessing — it's dispensing.
What to Tell Your Doctor — and Why Honesty Protects You
The screening conversation only works if it's honest, and we understand why that can feel hard. People worry they'll be judged, or automatically refused. So let's be clear about what's worth sharing and why:
- Any past eating disorder diagnosis, however long ago
- Patterns you were never diagnosed with — periods of severe restriction, bingeing, purging, or compulsive exercise
- How you currently think about food and your body — intense fear of weight gain, rigid rules, distress after eating
- Your goals — and whether weight loss is medically driven or coming from somewhere more painful
Sharing this doesn't disqualify you from care. It shapes your care: it might mean extra support alongside treatment, closer follow-up, involving a dietitian or psychologist, or choosing a different path first. What it prevents is the worst outcome — a powerful appetite-suppressing medication quietly feeding a condition that thrives in secrecy. Doctors who work in this space have these conversations every day, without judgment. You will not shock us, and you will not be shamed.
If This Article Feels Personal
Maybe you recognised yourself somewhere above — or someone you love. If so, please know two things: eating disorders and disordered eating are common, treatable, and nothing to be ashamed of; and reaching out is a strength, not an admission of failure.
- Butterfly Foundation National Helpline: 1800 33 4673 (1800 ED HOPE) — free, confidential support, information and referrals, 7 days a week, for anyone affected, including family and friends
- Your GP is a genuinely good first step and can connect you with the right care.
- If you're supporting someone else, the Butterfly Foundation also guides carers on how to raise concerns gently
And if you're mid-treatment on a weight loss medication and noticing your thoughts about food becoming more rigid, fearful or consuming — that's exactly the thing to raise at your next review, or sooner. It's information your care team needs, and acting on it early makes all the difference.
