Guides
Who Is Dr. Denis Wilson? The Story Behind Wilson's Temperature Syndrome
September 14, 2026 · Wilson's T3 Editorial
The syndrome carries his name, so people search for him. What they find first is a Wikipedia article and two medical bodies’ statements against the diagnosis. This page is the other half: his own account of how the idea arrived and what he did with it, in his words and his organisation’s, with the published record laid out plainly and the disagreement one click away.
Timeline
| Year | What happened |
|---|---|
| 1985 | Graduates from the University of South Florida College of Medicine |
| 1988 | In private practice in Orlando, takes an interest in the thyroid system |
| late 1980s | First uses T3 compounded with a sustained-release agent |
| 1989 | Has, in his account, “pretty much worked out the treatment protocol” |
| 1991 | Publishes the book, Wilson’s Temperature Syndrome – A Reversible Low Temperature Problem |
| 2006 | Peer-reviewed report on the protocol in eleven patients, Puerto Rico Health Sciences Journal |
| 2012 | Clinical-experience paper with Michaël Friedman, Journal of Restorative Medicine |
| 2015 | Interview indexed on PubMed Central, Integrative Medicine: A Clinician’s Journal |
Every row is sourced below.
The beginning, in his account
Dr. Wilson graduated from the University of South Florida College of Medicine in 1985. After one year of Family Practice residency, he began practicing medicine in Orlando, FL. After two years of private practice, he began taking an interest in the thyroid system in 1988. By 1989, Dr. Wilson had pretty much worked out the treatment protocol for Wilson’s Temperature Syndrome.
— Wilson’s Temperature Syndrome History
The biography page tells how the interest started — with a patient, and a book by an earlier physician:
Finding WTS all started when a woman came into Dr. Wilson’s office with complaints of a low body temperature, slow metabolism, and normal bloodwork. She gave him a book entitled “Hypothyroidism the Unsuspected Illness” by Broda Barnes, MD, which suggested that low body temperature was more accurate than a TSH level in diagnosing hypothyroidism. Dr. Barnes recommended T4-containing medicine for life. Dr. Wilson gave the patient T4-containing medicine and she recovered completely in a matter of weeks.
He started re-evaluating and treating his other patients with this new approach and about 60% of them had significant improvement! Why didn’t the other 40% respond? He reviewed the medical literature and found that T4 is converted to active T3, 80% of which occurs outside the thyroid gland.
— Dr. Denis Wilson, MD, the biography as published on the original site
What he says he added
He is specific about the contribution he claims:
To be clear, I didn’t invent T3. And Dr. Broda Barnes was the one that pointed out that low body temperatures can correlate better with low thyroid symptoms than thyroid blood tests. My contribution was finding that people with low temperatures and normal thyroid blood tests can often recover from one or more cycles of T3, and remain improved even after the treatment’s been discontinued. I was also the first doctor to use sustained-release T3 which is now being recommended by doctors around the world.
— Reverse T3, T3 & Body Temperature
The history page records the first use:
In addition, Dr. Wilson was apparently the first to conceive of sustained-release T3 and to emphasize the importance of it in T3 therapy. In fact, one of his staff appears to be the first person in the world to ever take T3 in a sustained-release form.
— Wilson’s Temperature Syndrome History
The patient closest to home
The biography includes the case he tells most often:
Early in the development of his treatment protocol, Dr. Wilson’s wife underwent an emergency C-section for their third child. When she was still in the hospital, she remembered the nurses saying, “Your temperature is 97 but that’s fine.” Only she didn’t feel fine, she went into severe postpartum depression. She had no energy, she felt overly overwhelmed, and the baby weight that came off so easily with the first two pregnancies wasn’t budging with this one. She was treated with T3, and her temperature normalized to 98.6 F in 2 days with complete resolution of her depression.
— Dr. Denis Wilson, MD, the biography as published on the original site
The book, and the opposition
The legal process between the Board and Dr. Wilson took time to transpire, during which he finished and published his book in 1991, Wilson’s Temperature Syndrome – A Reversible Low Temperature Problem (formerly, Wilson’s Syndrome — The Miracle of Feeling Well).
— Wilson’s Temperature Syndrome History
That sentence refers to a dispute with a state medical board in the 1990s. His account of it is on the history page; the critics’ account is in the sources named on the objection hub, which this site links rather than paraphrases. Readers should have both. The book itself is free to read here.
The organisation, and the herbs
The later chapter of the story is institutional:
About 20 years ago, Dr. Wilson was invited by Dr. Michaël Friedman, ND, an endocrinology professor at the University of Bridgeport School of Naturopathic Medicine, to speak to his class about Wilson’s Syndrome. In the process, he learned that Dr. Friedman was using herbs to help people normalize their temperatures and Dr. Wilson was amazed at the results. He and Dr. Friedman started an herbal supplement company, Restorative Formulations, to make Dr. Friedman’s formulas available to many other physicians.
— Dr. Denis Wilson, MD, the biography as published on the original site
Dr. Friedman is also a co-author of both papers below and directs the association that runs the T3 certification training — a connection worth knowing when you read them.
The published record
Three sources, described as what they are:
- Friedman M, Miranda-Massari JR, Gonzalez MJ. Supraphysiological cyclic dosing of sustained release T3 in order to reset low basal body temperature. P R Health Sci J. 2006;25(1):23–29. PubMed 16883675. A peer-reviewed clinical report on eleven patients with chronic fatigue; not a controlled trial.
- Wilson ED, Friedman M. Reversing Hypometabolic Symptoms by Normalizing Low Body Temperatures with Sustained-release T3 in Patients with Euthyroid TSH Levels. Journal of Restorative Medicine. 2012;1(1). Read it. The journal’s “clinical pearl” category — clinical experience, in its own words “not derived from double-blind studies”. Eleven patients.
- Gustafson C. Denis Wilson, MD: Low Body Temperature as an Indicator for Poor Expression of Thyroid Hormone. Integrative Medicine: A Clinician’s Journal. 2015. PMC4566469. An interview.
No controlled trial of the protocol exists. The American Thyroid Association’s 2005 statement, Cleveland Clinic and Wikipedia say the diagnosis is not accepted; the objection hub names and links all three and then gives his answers.
Today
The biography notes that he has written four books, lectures internationally, trains physicians through the certification course, and developed a shivering-based fitness approach he calls Fastercise, described on the treatment page. The doctor’s manual and the patient book are published on this site in full.
This is a reader’s guide compiled from Dr. Wilson’s published writing and his organisation’s pages; every quotation links to its source, and the published record above was verified against PubMed and the journals on 14 September 2026. It is biography, not medical advice.