Updates to Bad Medicine Blues
This book makes 1,093 factual claims and labels every one of them for the kind of evidence behind it. A number that specific has to be maintainable. This page is the running list of what has changed since it was printed. When a number here and a number in the book disagree, trust the newer one.
How this page works
Every claim in the book carries a tag saying what kind of evidence stands behind it: shown in people, associated only, animals only, not studied, or tested and did not hold. Of the 1,093 claims, 374 have been demonstrated in people, which is roughly one in three. I would rather print that number than imply a stronger one.
Evidence moves. A claim tagged not studied can become shown in people when somebody finally runs the trial, and a claim tagged shown in people can fail to replicate. When that happens to something in this book, it gets recorded here rather than quietly corrected in a later printing. I re-check the book against current research once a year.
Last full review: August 2026 (second edition). Next scheduled review: 2027.
What has changed since the first edition
The second edition added the evidence-tag system to every claim in the book, which is the largest change and the reason the tags exist at all. Individual corrections since then appear below, newest first within each group.
Claims whose evidence tag changed (the most important group)
August 2026 — the homeopathy chapter was rewritten. The first edition treated homeopathy more gently than the evidence supports. The chapter now states plainly that the proposed mechanism for how such dilutions would act has never held up under outside scrutiny, and that where people feel a genuine benefit, it comes from the ritual and care of the practice rather than from the remedy.
Two apparent exceptions are named honestly: small trials of Arnica for bruising, and the best trials of individualized prescribing. Tested at the highest quality, neither one held. That is a tested, didn't hold result, not a not studied one, and the difference matters. Nobody failed to look. They looked, and it did not work.
Official guidance and recommendations (these change a few times a year)
Screening intervals, official dietary advice, and professional-body positions are revised periodically. Where the book describes what a body currently recommends, treat it as a snapshot and confirm the current version.
No corrections yet as of August 2026.
Tests, products, and services (these change often)
Lab panels, at-home test kits, supplement formulations, and the companies behind them all change, and some disappear. Anything named in the book is named as an example of a category, never as an endorsement I can keep current.
No corrections yet as of August 2026.
The underlying biology (this changes slowly)
How your gut, your minerals, your sleep, your light exposure, and your muscle actually work is the slowest-moving part of the book and the least likely to need correcting. It is also the part the whole book is built on.
No corrections yet as of August 2026.
Found a claim you think is out of date, or one you think I tagged too generously? I want to know, and the tag is the part I most want challenged. Tell me here, and if you are right it will show up on this page with a thank-you.
Reading the book? The free Companion Workbook turns it into daily practice.
Readers: get told when something changes
If you have the book, you can join a short list that I write to only when something on this page actually changes, a few times a year at most. No other mail, and a one-click unsubscribe on every message.
The alert list is not connected yet. Please contact me and I will add you by hand.
You are on the list. I will write only when something on this page changes. Thank you for reading.