Yale and Edelman Survey Finds 70% of People Worldwide Believe at Least One Unproven Health Claim

A new survey from the Edelman Trust Institute and the Yale School of Public Health found that 70% of more than 13,000 people surveyed globally believe at least one unfounded health claim, according to TIME. The claims tested covered childhood vaccines, raw milk, and fluoride in drinking water, among others.

The dean of the Yale School of Public Health, a physician who co-authored the analysis, wrote in TIME that the finding cuts against a comfortable assumption: that people who fall for bad health information are simply uneducated or unscientific. Most survey respondents who believed one of the unfounded claims had taken a university-level or higher science course. Belief in these claims also didn't track cleanly along partisan or generational lines, per the same TIME piece.

The most striking finding may be this: people who interact with the health care system frequently were more than 50% more likely to hold three or more of the unfounded beliefs tested, according to the survey. Anyone who's spent months chasing a diagnosis through ambiguous test results, conflicting specialists, and treatments that don't work knows the frustration that drives people to look elsewhere for answers.

Nearly half of respondents said they believe someone without medical training, armed with AI, could perform at least one health-related task as well as or better than a doctor, TIME reported. This reflects how far trust in the traditional doctor's office has fallen and how much ground AI chatbots and online forums have picked up in its place.

The Trust Problem Is Bigger Than 'Misinformation'

TIME's framing treats this almost entirely as a misinformation problem to be solved with empathy. That's a reasonable starting point. Shaming people for googling their symptoms or trying a home remedy doesn't work and never has.

But calling every belief tested 'unfounded' flattens some real distinctions. The safety and effectiveness of childhood vaccines is backed by decades of data and is about as settled as medical science gets. Raw milk carries well-documented pathogen risks from bacteria like listeria, salmonella and E. coli, which the FDA and CDC have warned about for years. Fluoride in drinking water was also among the claims tested in the survey, though the source material doesn't detail the specific science behind that debate.

That distinction matters because the survey's broader point, that institutional trust is cratering, deserves scrutiny beyond individual gullibility. The TIME piece itself notes that people increasingly turn to AI, friends, family, and social media for health answers, in part because navigating a complicated or persistent illness means encountering ambiguous tests, treatments that don't work, and specialists who disagree. People keep searching because the system hasn't given them certainty.

The TIME piece is right that empathy beats condescension when someone shows up with a theory about moxibustion or fluoride. People reported being more likely to take advice when they believe their concerns have been taken seriously and that someone understands their community. But empathy without addressing why trust eroded in the first place only goes so far. If health authorities want the public to stop shopping around for answers on TikTok and AI chatbots, listening better is a start, but it isn't the whole fix.

What's Unresolved

The Edelman Trust Institute and Yale researchers haven't published a breakdown yet of which country-level populations distrust institutions most, or whether frequent AI use for health questions correlates with worse or better outcomes than traditional care. That data, if and when it's released, would tell us whether the AI shift is filling a real gap in care access or just moving the same confusion to a faster medium.