Conclusion: No, it is not hopeless
A nihilist would argue that fighting spin is futile. They would say you can’t fight incentives and business models. The incentive structure to publish is strong, and the journals and media know vitamin D studies garner attention – which is their currency.
I am not a nihilist and believe strongly that we must continue to teach critical appraisal and numerical literacy.
In fact, I would speculate that decades of poor critical appraisal by the medical profession have fostered outsized hope and created erroneous norms.
Imagine a counter-factual world in which clinicians have taught society that the human body is unlike an engine that can be repaired by fixing one part (i.e., the vitamin D level), that magic bullets (insulin) are rare, that most treatments fail, or that you can’t rely on association studies to prove efficacy.
In this world, people would be immune from spin and hype.
The norm would be that pills, supplements, and procedures are not what delivers good health. What delivers health is an amalgam of good luck, healthy habits, and lots of time spent outside playing in the sun.
Dr. Mandrola practices cardiac electrophysiology in Louisville, Ky., and is a writer and podcaster for Medscape. He espouses a conservative approach to medical practice. He participates in clinical research and writes often about the state of medical evidence. He has disclosed no relevant financial relationships. A version of this article first appeared on Medscape.com.