Evidence for Iodine?

Iodine works to protect your body against cancer. See “Iodine – Bringing Back the Universal Medicine” by Dr. Mark Sircus.


Is it safe?


At the recommended dosage, Iodine is extremely safe and non-toxic. From the Pauling Institute on Iodine (1):

Acute iodine poisoning is rare and usually occurs only with doses of many grams.

Note that “many grams” is 3,000 milligrams (mg) or more. Taking 1% of this dose – 30 milligrams (mg) – is certainly safe:



Iodine is beneficial and non-toxic, and the balance of evidence points to a therapeutic dose well above the RDA to minimise cancer.

I am eagerly looking foward to the results of the meta-study Supplement correlation with all-cause mortality.


12 milligrams (mg) of potassium iodide per day, as per the book Iodine: Bringing Back the Universal Medicine by Dr. Mark Sircus.

According to this book, the RDA of iodine is just enough to prevent you from getting goiter. The healthy amount of iodine is much higher.

Further Reading

There is a very interesting article Validation of the orthoiodosupplementation program: A Rebuttal of Dr. Gaby’s Editorial on iodine.


Download .pdf document: TIOD12.pdf

This article explains the difference between inorganic and organic iodine, and shows experience from over 4,000 patients treated by this practice.


Question: There is no evidence to show that iodine is effective against cancer?

This is the wrong question. If you hear somebody use these exact words, then they trying to dismiss iodine as a factor related to cancer.

The correct questions are:

  • “Is the balance of evidence in favour of taking iodine for cancer prevention?”, or;
  • “Is iodine more likely to help than harm?”

The answer to these two questions is yes, and yes, because there is good evidence that iodine is a factor in cancer prevention.

At some point in the future, there will be a large scale, double blind medical study for iodine and cancer, and the probability that iodine is definitely effective will approach 100%. However, until then, we have to use Bayes theorem to work with the best evidence we have: the probability of help vs. harm is not 100%, and is above 90%.


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