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Aug 2, 2022

What does the body of evidence say on the topic of vitamin supplements? We pilot a new format for the show and ask for your feedback! Let us know your thoughts on Facebook, Twitter, Patreon, or via email at


(6:34) The story of scurvy and how its cause, a vitamin deficiency, was harder to “science” than you may remember, with author Stephen R. Bown. 


(22:48) The porous regulations that allow vitamin supplements to be sold and how Mel Gibson played a key role in this system, with health policy expert Timothy Caulfield.


(35:27) Chris and Jonathan explain what each vitamin does, what happens if you’re deficient, and whether or not vitamin supplements are necessary.



* Jingle by Joseph Hackl

* Vox pop by Thanos Michailopoulos

* Theme music: “Fall of the Ocean Queen“ by Joseph Hackl

* Assistant researcher: Nicholas Koziris


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1) Chris’ article “It Hasn’t Been a Good Year for Vitamin D”:


2) Vitamin D supplementation and cardiovascular risk:


3) VITAL study:


4) AMATERASU trial:


5) D2D study on vitamin D and type 2 diabetes:


6) The U.S. Preventive Services Task Force’s Final Recommendation Statement from June 2022:


7) Recommendation Statement as published in the Journal of the American Medical Association:



Music Credits:

Peter Sandberg / Étude No 1 for String Quartet

Christoffer Moe Ditlevsen / Rise to Power

National Anthem Worx / Rule Britannia

Silver Maple / Unspoken

Bonnie Grace / We Still Have Courage


Wendy Marcini / The Cast

Wendy Marcini / The Scam

Christoffer Moe Ditlevsen / The Stakeout


Farrell Wooten / Margin of Error


All courtesy of