A health expert is urging New Zealanders to approach online and AI-generated weight-loss advice with caution while pursuing their New Year fitness resolutions.
Moshy NZ clinical lead Dr Kieran Dang, said patients are increasingly misled by social media promotions and AI tools promoting unsafe or ineffective treatments.
“I’m deeply concerned by the rise of unregulated weight-loss products being promoted on social media,” Dang said.
“Patients tell me they’ve tried capsules or supplements sold online with no idea what’s actually in them. These are not prescription medications and can be dangerous.”
A 2024 New Zealand study on dietary supplements revealed that high-risk weight-loss products often contain undeclared prescription drugs or excessive caffeine, exposing consumers to unknown and potentially harmful substances.
Medsafe has detected unapproved diet pills in New Zealand containing prescription medicines or controlled substances like sibutramine and phenethylamine, which pose risks to heart rate, blood pressure, and heart valves.
Dang warns that social media, AI tools, and unregulated supplements are combining to create a perfect storm for those chasing quick post-holiday results.
“As people set health goals for the new year, many turn to the internet for help, but what looks like a quick fix can do lasting damage. It’s important to recognise that credible weight-loss care needs proper medical oversight,” he said.
“January is when motivation is at its highest but also when people are most vulnerable to misinformation. What starts as a resolution to get healthy can quickly become a risk to your wellbeing.”
Dang also clarifies that his concerns do not extend to all social media content, since verified, evidence-based health accounts offer valuable education and support.
“Social media can be a positive space when information comes from credible, medically verified sources. The danger lies with unverified accounts or AI-generated advice that appears trustworthy but has no clinical backing.”
“Check that any medication is Medsafe-registered, avoid buying supplements or capsules through social media, and always seek guidance from a licensed healthcare professional.”