The rising popularity of weight loss medications such as Ozempic, Wegovy, and Mounjaro has sparked both hope and concern, in Australia and around the world.
These injectable drugs, originally developed to treat type 2 diabetes, work by mimicking a hormone called GLP-1 (glucagon-like peptide-1) that helps regulate appetite and blood sugar levels by producing a biological response.
While these drugs have shown impressive results in aiding weight loss, especially in people struggling with obesity, their use comes with notable health risks – particularly when prescribed off-label or used without medical supervision.
One of the most commonly reported side effects of GLP-1 receptor agonists like Ozempic is gastrointestinal discomfort and burping. Many users experience nausea, vomiting, diarrhoea, or constipation. Hair loss, allergic reactions and libido issues have also been reported.
These symptoms are typically more pronounced when starting the drug or increasing the dose and may subside over time. However, in some individuals, these side effects can be severe enough to require discontinuation of the medication.
Persistent nausea can lead to dehydration and nutritional deficiencies, especially if patients begin to eat far less than is healthy.
Long term
More serious concerns have emerged over longer term use. There’s evidence to suggest a possible link between these weight loss drugs and pancreatitis, a potentially life-threatening inflammation of the pancreas.
Though rare, cases of acute pancreatitis have been reported, particularly in people with a history of pancreatic disease.
There’s also concern about gallbladder-related issues, including gallstones and gallbladder inflammation, likely due to rapid weight loss or reduced bile flow.
In animal studies, GLP-1 agonists have been associated with an increased risk of thyroid C-cell tumors. While this hasn’t yet been clearly shown in humans, it has led to black-box warnings on medication packaging and increased caution when prescribing these drugs, especially to individuals with a personal or family history of thyroid cancer.
Beyond the physical
The psychological effects of weight loss drugs are a growing area of scrutiny. Some users have reported heightened anxiety or mood changes while on these medications.
Rapid weight loss can also create unrealistic expectations or foster unhealthy relationships with food. In certain cases, the weight lost may be regained quickly if the medication is stopped, leading to frustration and a cycle of yo-yo dieting.
The risk of misuse is another concern. With celebrity endorsements and widespread media coverage, some people seek out these drugs for cosmetic weight loss rather than medical necessity.
This can lead to inappropriate prescribing, supply shortages for diabetic patients, and increased risk of side effects in people who may not be adequately monitored.
No replacement for healthy food and exercise
In spite of the hype, these weight loss medications are not a cure-all and are not risk-free. They work best as part of a broader lifestyle plan that includes dietary changes, physical activity, and mental health support.
Relying solely on drugs without addressing the root causes of weight gain – such as emotional eating, sedentary habits, or metabolic imbalances – can greatly limit their long-term effectiveness.
As with any powerful medication, careful expert oversight is essential to ensure safe and effective use of diet drugs, and the decision to start such medications should always be made in consultation with a qualified healthcare provider.
