Are Social Media Influencers Pushing You Toward Harmful Health Tests?
Three popular health tests promoted by influencers may do more harm than good. Experts urge caution as medical misinformation spreads rapidly online.
The Health Tests Going Viral — And Why Doctors Are Worried
Social media has become a powerful force in shaping how people think about their health. From wellness influencers to celebrity endorsements, millions of people are being nudged toward costly medical tests that promise insight, empowerment, and early disease detection. But a growing number of medical experts are pushing back — warning that three of the most heavily promoted tests could cause more harm than benefit.
A research-backed campaign launched by the University of Sydney is now taking aim at the spread of health misinformation online, focusing specifically on full-body MRI scans, testosterone blood tests, and the Anti-Mullerian hormone (AMH) test — commonly known as the "egg-timer" test.
The Three Tests Under the Microscope
1. Full-Body MRI Scans
Celebrities including Kim Kardashian and Paris Hilton have publicly championed full-body MRI scans, framing them as a proactive step toward catching serious illness — particularly cancer — before symptoms ever appear. Wellness and longevity clinics around the world have capitalized on this momentum, marketing the scans as comprehensive "whole body health checks" to perfectly healthy individuals. The price tag? Often upwards of $800.
However, leading medical authorities, including the Royal Australian and New Zealand College of Radiologists, have explicitly advised against these scans for people without symptoms. The core concern is what experts call "incidental findings" — abnormalities detected by the scan that may never have caused any harm if left undetected. In the context of cancer, this could mean identifying extremely early-stage conditions that would never have progressed, yet their discovery triggers anxiety, and in some cases, unnecessary and aggressive treatments such as radiotherapy or major surgery.
The bottom line: for healthy individuals, the evidence simply does not support any meaningful improvement in health outcomes from these scans.
2. The AMH or 'Egg-Timer' Test
The AMH test measures levels of Anti-Mullerian hormone in the blood, which is loosely associated with a woman's egg reserve. Marketed aggressively online as a fertility health check, it is being positioned as a tool that can help women understand their reproductive window and plan accordingly.
But experts say this framing is deeply misleading. While the AMH test does have legitimate medical applications — particularly in guiding IVF treatment for women already experiencing signs of infertility — research consistently shows it is not a reliable predictor of fertility in healthy women with no reproductive concerns.
The psychological toll of this test is significant. Being told that your egg reserve appears low can create panic, distort reproductive decision-making, and pressure women into expensive interventions like elective egg freezing or IVF that may be entirely unnecessary. Conversely, a result that appears reassuring could mask other underlying fertility issues, giving women false confidence. As researchers note, the test "preys on the vulnerability" of women of reproductive age at a time when fertility anxiety is already high.
Adding to the concern, the AMH test can now be ordered directly online and administered at home, with results sent back to a clinic — often leaving women to interpret complex hormonal data without any professional medical guidance. Reports have emerged of young women reading their results and wrongly concluding they are completely infertile.
3. Testosterone Blood Tests
For men, testosterone testing is being marketed through wellness clinics and social media channels as a means to measure whether hormone levels are at their personal "optimal" range. The appeal is understandable — testosterone is closely tied to energy, mood, muscle mass, and libido. But the way these tests are being promoted raises serious red flags.
The primary danger lies in what comes next. Testosterone testing in this context is frequently bundled with the promotion of testosterone supplementation — a treatment that carries a range of potential side effects when used without genuine medical need. While clinical-grade testosterone supplements require a prescription, men are increasingly turning to unregulated or hidden-market channels to access them.
How Influencers Are Bypassing Medical Gatekeepers
In many countries, strict regulations govern how prescription medicines and medical treatments can be advertised. But the social media landscape has created significant gaps in oversight. Influencers and direct-to-consumer health companies are finding creative workarounds, effectively sidestepping the traditional requirement for a qualified health professional to assess whether a test or treatment is medically appropriate for an individual.
The result is a marketplace where health decisions that would once have begun with a doctor's consultation are now being driven by Instagram posts and YouTube testimonials. Wellness clinics are expanding at pace, and at-home testing kits are just a few clicks away.
The Real Cost of 'Empowered' Health Choices
The narrative woven through much of this social media health content is one of empowerment — the idea that accessing more information about your body puts you in control. But experts argue this framing obscures a deeper problem.
True disease prevention, they say, is far less glamorous than a full-body scan or a hormone panel. It comes down to consistent lifestyle habits: eating a balanced diet, exercising regularly, prioritizing sleep, maintaining healthy relationships, and paying attention to genuine symptoms — then seeking professional advice when something feels wrong.
When marketing becomes so persuasive that individuals feel personally responsible for seeking out expensive tests just to stay ahead of potential illness, the outcome is not a healthier population — it is a more anxious one. Researchers describe this growing phenomenon as manufacturing "the worried well."
Fighting Back With Evidence
The University of Sydney's campaign is working to counter the tide of misinformation by delivering evidence-based content across Facebook, Instagram, and YouTube over the coming weeks. The initiative is also partnering with major medical colleges to ensure that authoritative, accurate information reaches the same digital spaces where misinformation currently thrives.
For anyone considering one of these tests based on something they saw online, the message from experts is clear: speak to a qualified healthcare professional first — and think critically about who benefits from telling you that you need the test in the first place.
