A recent study in JAMA Network Open has found that between January and March 2025, America’s Poison Centers reported a 38.7% increase in vitamin A exposures during the measles outbreak across many states.
… [T]he sudden interest in vitamin A in response to the measles outbreak was neither expected nor evidence-based, as it does not prevent measles. …
The researchers found that the surges coincided with two key events: the first of several media statements promoting vitamin A as a measles treatment on February 19, 2025, and comments by Dr. Suzanne Humphries on the hugely popular The Joe Rogan Experience podcast, where she promoted vitamin A and cod liver oil as treatments for measles.
Previous studies have established how social media and online trends can have an impact on public health concerns and behaviors.
Related on the SLP
… Searches for vitamin A rose 7.5 percentage points above expected levels, while searches for cod liver oil increased by 1.3 points. At the same time, poison centers reported a significant rise in exposure to dangerous amounts of vitamin A, most of them involving children.


















