Lex, your excellent info on iodine and your symptoms and similar history have me wondering if I should gradually increase my own intake of iodine and selenium. I've been interested in iodine, selenium, the fat soluble vitamins (especially A, D and K) and minerals and have been eating more seafood, greens, kelp, kelp iodine drops, douglas fir spring tips tea, butter oil, butter and other potentially helpful foods, but after reading your journal and your cherry angioma symptom, I'm thinking that my iodine and selenium intake is probably still too little to make a difference and based on what you, William and Mario Renato Iwakura at Paul Jaminet's blog say, it sounds like Lugol's is more likely to work.
I don't have cherry angiomas, but I do have a small number of pink bumps on my thighs that I was never concerned about, but looked up after reading your journal. The closest match is keratosis pilaris, which is extremely common and has been linked to vitamin A deficiency. I have some other symptoms and long history that roughly, though not completely, correlate with hypothyroid. I take vitamin A via RF cod liver oil and liver with no effect on the bumps, but other people report that they had to take iodine to enable them to better absorb the vitamin A and only then clear their skin and solve other hypothyroid-like issues, and research supports the link:
http://www.ncbi.nlm.nih.gov/pubmed/18214025. Iodine deficiency might also help explain my lifelong carb intolerance symptoms (though it could be coincidence):
INFLUENCE OF DI-NITROPHENOL ON CARBOHYDRATE METABOLISM
http://archinte.jamanetwork.com/article.aspx?articleid=540774However,
Iwakura warns about the Risks of quickly going to high-dose iodine supplementation, instead of gradually building up to it:
http://perfecthealthdiet.com/category/nutrients/iodine-and-selenium/
How can the thyroid be made replete with iodine?
The best way, which we recommend in our book, is to supplement with iodine and gradually build up the dose over a four to six month period. Start below 1 mg/day, take that for a month, then double the dose. After a month, double the dose again. Continue doubling until you reach your desired maintenance dose; we recommend at least 3 mg/day (a quarter Iodoral tablet), with 12.5 mg/day a reasonable dose. Some people taking as much as 50 mg/day.
At 12.5 mg/day, it can take a year or more to become replete with iodine in all tissues and to fully drive out other halogens, such as bromine, from the body. This has great benefits for immune function. So, it is best to get started!
Risks of high-dose iodine supplementation
If a person’s thyroid gland is adapted for iodine scarcity and the person takes a large dose of (non-radioactive) iodine, the likely course of events is:
1. Hyperthyroidism. The thyroid, aggressively scavenging for iodine to repair a deficiency of thyroid hormone, scoops up all the iodine and makes a large amount of thyroid hormone. The person develops symptoms of hyperthyroidism (too much thyroid hormone): anxiety, intolerance of heat, muscle aches, hyperactivity, irritability, hypoglycemia, elevated body temperature, palpitations, hair loss, difficulty sleeping.
2. Wolff-Chaikoff effect. As thyroid hormone levels become too high, the body induces mechanisms for suppressing thyroid hormone production. Simply reducing TSH output is not effective to suppress thyroid hormone production if a very large iodine influx is received. Fortunately there is another mechanism for suppressing thyroid hormone formation, mediated by iodine itself: the formation of iodine-rich proteins (iodopeptides) in the thyroid that inhibt synthesis of the thyroid peroxidase (TPO) enzyme. Normally, this mechanism operates for a few days and wears off, restoring normal thyroid function. [3]
3. Reactive hypothyroidism? Usually, everything will normally return to normal after a few days. But sometimes in previously iodine-deficient adults and more commonly in newborns and fetuses and some diseased persons, after very high doses of iodine the Wolff-Chaikoff effect can persist. In this case the early hyperthyroidism is followed by a period of hypothyroidism (too little thyroid hormone). This “hypothyroidism is transient and thyroid function returns to normal in 2 to 3 weeks after iodide withdrawal, but transient T4 replacement therapy may be required in some patients.” [3]
4. Risk for lasting hypothyroidism. People who develop a reactive hypothyroidism following a large dose of iodine are at high risk for later development of persistent hypothyroidism. [3]
So most people will experience transient hyperthyroid symptoms for a few days and then do fine. Some will develop a reactive hypothyroidism lasting a few weeks and then be OK, save for an elevated risk of hypothyroidism later which may or may not be due to the reactive episode.
If you have a chance to peruse it, what do you think about the key points in the article?
I've also been taking cold showers, and that more than anything seems to have helped improved my circulation and cold tolerance, which Paleo and raw Paleo had already helped some--especially raw suet and RF CLO--but seemed to gradually backslide again towards the end of my relatively brief ZC-to-VLC food elimination trial that helped me determine which plant foods I can currently tolerate fairly well. Like Paul Jaminet, Anthony Colpo, Chris Kresser, Danny Roddy, Matt Stone and others, I'm interested in trying to resolve the underlying issues that contribute to my carb intolerance symptoms, rather than just hide those symptoms with VLC, and apparently cause or exacerbate other issues in the process. (YMMV)