Ingredients in Matol KM include iodine

https://www.livestrong.com/article/545214-ingredients-in-matol-km/

and a lot of it.
***************************************************************

Proprietary Herbal Extract Blend

The heart of the Matol KM formula is its "Proprietary Herbal Extract Blend," a balanced mixture of 14 different herbal ingredients. One tablespoon of Matol KM contains a total of 108 milligrams of chamomile, sarsaparilla, dandelion, horehound, licorice, senega, passion flower, thyme, gentian, saw palmetto, alfalfa, angelica, Celery seed and cascara sagrada. The herbs are supposed to work in synergy; the amount of any individual herb per dose is probably too small to have a therapeutic effect. For instance, a typical herbal laxative may have 450 milligrams or more of cascara sagrada per dose – more than four times the total weight of a dose of KM's extract blend.


Minerals

In addition to herbs, a dose of Matol KM contains four key minerals. It has 30.5 milligrams of calcium in the form of calcium glycerophosphate. Ferric glycerophosphate adds 1.4 milligrams of iron. One dose includes 22.5 milligrams of Iodine as potassium Iodide and 350 milligrams or 10 percent of the recommended daily amount of potassium ion.

********************************************************************************

what a great product, if you could afford it. forty bucks a bottle would be about four days worth. ten bucks a day is too much. but boy would a persons life change taking that.