bonus

A Morel Dilemma: Bonus — The Bradford Hill Criteria & The Morel

In Episode 5, we put the morel mushroom on trial. This bonus episode shows how we built the case.

Dr. Grant Comstock joins me for the full, unfiltered causation breakdown using the Bradford Hill criteria, a public health framework used to separate true causation from simple association. We walk through the CDC data step by step, looking at strength of association, timing, dose response, plausibility, consistency, specificity, and the places where the morel theory starts to strain.

This is the deeper dive behind the trial: how toxicologists stress-test an outbreak theory when there is no smoking gun, no known toxin, and no easy answer.

Select references

  1. CDC Bozeman Montana Outbreak Data
  2. Ryan's paper on the Bradford hill criteria in EVALI

A Morel Dilemma

Support the show

Review the show where ever your listening

Get Messages from Toxo (Join the Newsletter!)

Join as a supporting member

  • Ad free episodes
  • Bonus content and early access
  • Discounts and give aways on GOTA PICCEM Mushroom card game

The GOTTA PICCEM Poisonous Mushroom Game!

The Poisonus Fungus Amongus Children's Book!

Tox trinkets (Rep the show at home!)

Reach the show

  • Email: Toxtalk1@gmail.com

More Show Resources

About the Podcast

Show artwork for The Poison Lab
The Poison Lab
Explore the world of poisoning with Clinical Toxicologist Ryan Feldman and Cohost Toxo, dive into the history, science, and life-saving care of poisoning. Survivor stories, expert insights, and deep dives—every poison has a story to tell!

About your host

Profile picture for Ryan Feldman

Ryan Feldman

Dr. Ryan Feldman PharmD, DABAT is the chief scientist at The Poison Lab. He works as a Clinical Toxicologist, Emergency Medicine Pharmacist, and Clinical Assistant Professor of Pharmacy and Emergency medicine.

Support The Poison Lab

A huge thank you to our supporters, it means a lot that you support our podcast.

If you like the podcast and want to support it, too, you can leave us a tip using the button below. We really appreciate it and it only takes a moment!
Support The Poison Lab
A
Anonymous $5
From reddit r/mycology. Thank you for the captivating story of the morel poisoning incident.
M
Margaret Shi $10
Keep up the good work!!