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104: Question on Iodine, Fatigue, and Detox Reactions

Masterjohn Q&A Files Episode 104


Carrie: Remember, iodine belongs to the halogen family and other halogens can bind onto your PT or tyrosine. I have had this before where patients would take iodine and the iodine will push off the fluoride and the chloride and the bromide off of the tyrosine, and so it binds on and now you have essentially a detox reaction. People will say, "I get headaches. I've broken out in rashes. I'm really tired." Because the other halogens have come off the tyrosine and are now floating around your system.

I believe in iodine. I'm not sold yet on iodine testing. I feel like there are so many rules of thoughts. But if I use iodine, I warn people of that, of the detox reaction.

Chris: What are all the normal things you do for a Herxheimer reaction?

Carrie: Wait a minute. Obviously lots of water, exercise, binders, so like fiber and charcoal or zeolite or whatever you're doing to bind this stuff up, clay, those supplements with that sort of stuff in it. Saunas are really good, sweating, dry skin brushing to try to help move it through your body while staying on the iodine. You want the iodine to bind to the tyrosine and not the halogen to rebind because you stopped taking it, which is going to rebind to your tyrosine. I've seen it take up to a couple weeks, depending how halogen toxic that you are.

This Q&A can also be found as part of a much longer episode, here: 

Harnessing the Power of Nutrients
050: Ask Us Anything About Hormones with Dr. Carrie Jones | May 10, 2019
Watch now (125 min) | On May 10, members of the CMJ Masterpass joined me and Dr. Carrie Jones in a live Zoom meeting to ask us anything about hormones, and here’s the full recording! We talk about things like: What time of day is best to take T4 and/or T3? How to use pregnenolone to manage perimenopausal insomnia…
Read more

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DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice.

PLEASE NOTE: As a result of the COVID-19 crisis and the time I am committing to staying on top of relevant research, as well as the high volume of questions I receive, it may take me extra time to respond to questions here. For an up-to-date list of where I respond to questions most quickly, please see the contact page on

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The Masterjohn Q&A Files
We use Zoom, a video chatting software, in webinar mode. You can ask your question anonymously in text, but you can also ask it publicly, and you can even get "on stage" and share your mic, web cam, or screen with everyone.
Chris Masterjohn, PhD