GLP-1 medications (like semaglutide or tirzepatide) are becoming a common treatment for people wanting to manage type 2 diabetes, obesity, or related health conditions. These medications can be life-changing, helping improve blood sugar, reduce appetite, and support weight management.
But alongside their benefits, GLP-1 medications can also bring new challenges with eating, nutrition, and overall wellbeing. That’s why Dietitians Australia is advocating for the government to introduce Medicare rebates for dietitian support with every GLP-1 prescription to make sure people get the care they need, not just the medication.
At Optimum Intake Dietitians, we couldn’t agree more. We see firsthand how dietitian support makes a big difference in safety, comfort, and long-term success.
Why This Is Needed: Nutritional Complications of GLP-1 Use
When GLP-1 medications are used without strong nutrition oversight, several complications or risks can arise. Evidence is growing that these are not rare side-effects.
| Complication | What Happens | Why It Matters |
|---|---|---|
| Reduced appetite & caloric intake | GLP-1 suppresses appetite and slows gastric emptying. Patients may eat less, skip meals, or not feel hungry. (UCHealth) | Can lead to inadequate nutrient intake; risk especially high in people with poor nutritional status to begin with. |
| Gastrointestinal side effects | Nausea, vomiting, constipation, diarrhea, bloating, delayed gastric emptying. (Biocare) | These can reduce tolerance to food, reduce intake, cause unpleasant symptoms, reduce quality of life. |
| Loss of lean body mass (muscle loss) | Because weight loss can come from both fat and muscle mass if protein intake & activity are insufficient. (Patient Care Online) | Losing muscle mass affects metabolism, strength, physical function, and long-term health outcomes. |
| Micronutrient deficiencies | Less food variety, lower intake of certain food groups, plus side effects interfering with absorption/utilisation. (BMJ) | Deficiencies in vitamins/minerals can lead to a host of problems: fatigue, immune issues, neurological effects, etc. |
| Risk of malnutrition even with obesity | People with obesity are often assumed “well-nourished,” but evidence shows malnutrition (muscle loss, micronutrient deficiency) is present in these populations. (BMJ) | If overlooked, risk of severe complications, worse outcomes, poorer response to drugs. |
| Reduced diet quality & altered food preferences | GLP-1 use may shift what people eat (e.g., avoid high fat, spicy, or large meals), sometimes foregoing nutrient-dense foods. (Shore Physicians Group) | Long-term impacts on health, energy, gut health, satiety, etc. |
What Improved Outcomes Can Be Expected If Dietitians Are Involved with GLP-1 Prescriptions
Including dietitians as a standard part of the GLP-1 prescription pathway has many potential upsides:
- More consistent monitoring and prevention of malnutrition (especially lean mass loss)
- Better management of side effects (nausea, GI upset, etc.) through dietary adjustments
- Improved dietary quality, ensuring nutrient demands (protein, vitamins, minerals) are met
- Greater adherence to therapy (if side effects are managed, and patients feel supported)
- Enhanced overall health outcomes (e.g. better weight loss outcomes, better metabolic markers, fewer comorbidities)
- Reduced health costs in the long term by preventing complications (e.g. malnutrition, hospitalization)
The Bigger Picture: Advocacy for Change
Dietitians Australia is taking this conversation to Parliament through the Parliamentary Friends of Nutrition initiative, asking the government to:
- Fund a Medicare rebate for dietitian care with every GLP-1 prescription
- Ensure wrap-around support is accessible, not just for those who can afford private care
- Recognise that medications alone aren’t enough — people need ongoing nutritional guidance to thrive
We stand firmly behind this advocacy, because we see how vital dietitian care is for real people every day.
Local Care, Personalised Support
At Optimum Intake Dietitians, we’re here to walk this journey with you. Whether you’re just starting GLP-1 medication or already taking it, we can help you feel confident and supported.
- Our team works with clients across the Central Coast and Newcastle, offering face-to-face appointments.
- We also provide telehealth consultations Australia-wide, so no matter where you are, you can access expert dietitian support.
We’ll meet you where you’re at — helping you navigate food choices, manage side effects, protect your health, and feel confident in your plan moving forward.
Ready to Take the Next Step?
If you’ve been prescribed a GLP-1 medication, you don’t have to manage the changes on your own. With the right nutrition support, you can:
- Minimise side effects
- Protect your health long-term
- Improve your outcomes
- Feel confident and in control of your journey
Reach out to Optimum Intake Dietitians today to book your appointment — locally on the Central Coast or in Newcastle, or via telehealth across Australia.
