The growing popularity of GLP-1-based medications has transformed the conversation around weight loss.
Originally developed for the management of type 2 diabetes and obesity, these glucagon-like peptide 1 drugs have gained widespread attention due to their effectiveness in helping suitable patients achieve significant weight reduction.
However, alongside their growing popularity, a concerning trend has emerged.
More individuals are seeking rapid weight loss through such medications obtained from unofficial online sources or without proper medical supervision.
Contributing factors
Several factors contribute to this.
Social media platforms frequently showcase dramatic weight loss transformations, often presenting these medications as simple solutions rather than prescription treatments that require careful medical oversight.
At the same time, online platforms provide easy access to products that promise convenience, privacy and quick results without the need for consultations, health assessments or follow-up care.
Many individuals are also influenced by the desire for faster results.
In a culture where instant outcomes are often prioritised, sustainable weight management can seem less appealing than products marketed as quick fixes.
Unfortunately, obesity itself remains heavily stigmatised, causing some individuals to avoid seeking professional help and making them more vulnerable to misleading marketing and unverified sellers.
Illegal means
How then are people obtaining these supposedly prescription-only medications?
The demand for rapid weight loss has fuelled a growing online market for weight-loss drugs sold through social media platforms, messaging applications and unofficial online sellers.
While some products may appear legitimate, international health authorities have repeatedly warned about counterfeit or unregulated GLP-1 products circulating online.
Investigations have identified products containing incorrect ingredients, unsafe contaminants, misleading labelling and falsified packaging.
The concern is not limited to counterfeit products alone.
Healthcare professionals are also seeing improper use of genuine medications.
Some individuals obtain medications from friends or family members, share prescriptions, use incorrect dosing schedules, or attempt to reduce costs by altering recommended doses without medical guidance.
Many assume that because a product is widely promoted online, it must be safe and legitimate.
Unfortunately, that is not always the case.
Products sold through unofficial channels may not have undergone proper quality control, been stored appropriately, or contain the ingredients listed on the label.
Why this is dangerous
One of the biggest misconceptions surrounding GLP-1-based medications is that they are simply weight-loss injections.
In fact, these are prescription medications that affect multiple physiological systems within the body.
They influence appetite regulation, gastric emptying, insulin secretion and glucose metabolism.
As such, they require proper medical assessment, dose titration and ongoing monitoring.
When prescribed appropriately for suitable patients, these medications can be highly effective.
However, problems can arise when individuals use them without proper screening or medical supervision.
Healthcare professionals have seen patients present with complications associated with inappropriate or unsupervised use of weight-loss medications.
Common issues include:
- Severe nausea
- Persistent vomiting
- Dehydration
- Electrolyte imbalance
- Worsening kidney function
- Hypoglycaemia (low blood sugar) in susceptible individuals, and
- Severe gastrointestinal symptoms.
From a nephrology perspective, dehydration is particularly concerning.
Persistent vomiting and reduced fluid intake can place significant stress on the kidneys and may trigger acute kidney injury, especially among individuals with underlying chronic kidney disease, diabetes and/or hypertension (high blood pressure), or those taking medications such as diuretics.
In some cases, patients may combine weight-loss medications with extreme calorie restriction, herbal supplements, laxatives or multiple slimming products in an attempt to accelerate results.
Such practices can significantly increase the risk of metabolic complications and adverse effects.
Others may increase their doses too quickly after receiving advice from friends, social media influencers or online communities, rather than healthcare professionals.
This can further increase the likelihood of complications.
More concerning are situations involving counterfeit or unverified products.
As the actual contents and sterility of these products cannot be guaranteed, individuals may unknowingly inject substances that are contaminated, improperly stored or entirely different from what is advertised.
Warning signs
While some gastrointestinal side effects may occur during treatment, certain symptoms should prompt immediate medical attention.
Individuals should seek urgent medical review if they experience:
- Severe or persistent vomiting
- Inability to tolerate fluids
- Severe abdominal pain
- Chest pain
- Fainting
- Reduced urine output
- Confusion, or
- Symptoms suggestive of low blood sugar, including sweating, tremors, dizziness or loss of consciousness.
Persistent abdominal pain that radiates to the back may indicate pancreatitis, a condition that requires immediate evaluation and treatment.
Other warning signs include:
- Severe diarrhoea
- Marked weakness
- Palpitations
- Facial swelling
- Difficulty breathing or difficulty swallowing, which may suggest a serious adverse reaction.
Patients should also seek a medical consultation if they experience rapid deterioration in overall health, excessive fatigue or prolonged gastrointestinal symptoms, rather than assuming these effects are normal.
Early medical intervention is important because many complications can be treated successfully when identified promptly.
The safer approach
While GLP-1-based therapies can be highly beneficial for appropriate patients, the safest and most effective approach to weight management remains a medically-supervised and individualised weight management plan.
Before initiating any medication, patients should undergo a proper clinical assessment that includes evaluation of body mass index (BMI), metabolic health, kidney and liver function, cardiovascular risk factors and existing medical conditions.
Not every individual is suitable for GLP-1 therapy.
Importantly, medication- assisted weight loss should not be viewed as a standalone solution.
The most successful outcomes are achieved when medication is combined with healthy dietary habits, regular physical activity, behavioural modification, adequate sleep and long-term follow-up.
Patients should also ensure that any prescribed medication is obtained through licensed healthcare providers and regulated pharmacies.
Products purchased through unofficial online channels, social media sellers or sources that make unrealistic promises should be approached with caution.
Obesity is a chronic medical condition, not simply a cosmetic concern.
Effective management requires an evidence-based treatment plan tailored to an individual’s health needs and long-term goals.
GLP-1-based therapies can be transformative for the right patient when used appropriately.
However, safe treatment requires professional guidance, realistic expectations and ongoing monitoring.
Ultimately, successful weight management should focus on long-term health improvement rather than rapid short-term weight loss.
Dr Theepa Nesam MR is a consultant nephrologist and physician. For more information, email starhealth@thestar.com.my. The information provided is for educational and communication purposes only, and should not be considered as medical advice. The Star does not give any warranty on accuracy, completeness, functionality, usefulness or other assurances as to the content appearing in this article. The Star disclaims all responsibility for any losses, damage to property or personal injury suffered directly or indirectly from reliance on such information.
