You may be right about I2 vs iodide and I2 does enter the tissues better. You also bring up a good point regarding Reagewnt grade and one that I have given much thought. In my post I recommended using Reagent grade iodine and iodide. Reagent grade is the highest laboratory grade and is not pharmaceutical grade. Reagent grade has to be fairly pure for it's use in a lab. For example, many pharmaceutical drugs are made using Reagent grade chemicals. The potassium iodate I purchased had a purity of 99% and came with a Certificate of Analysis. If you are taking 100mg of iodine daily, you would use about 25mg of potassium iodate, giving a maximum impurity of 0.25mg of impurities. Of the 0.25mg of impurities only a fraction of that could be considered harmful according to the Certificate of Analysis. Let's look at what the FDA allows in pharmaceutical drugs: Table 3.1 Organic impurity Threshold in new drug substances based on ICHQ3A [4, 5 and 20]Maximum daily dose1 ReportingThreshold2,3 Identification Threshold2,3 Qualification Threshold2,3 ≤2g/day 0.05% 0.1 or 1.0mg/day intake (whichever is lower)0.15% or 1.0mg/day (whichever is lower) > 2g/day0.03% 0.05% 0.05% Note: 1- The amount of drug substance administered per day2- Higher reporting thresholds should be scientifically justified3- Lower thresholds can be appropriate if the impurity is unusually toxic
The limits above are per an individual substance and not total level of impurities. Use of Reagent grade potassium iodate satisfies these requirements. So one could use a commercial SSKI, which is inexpensive, and combine it with Reagent grade potassium iodate if you want to cautious. A second thing one could do is take some clay (e.g. bentonite), zeolite or EDTA with the iodine to remove any heavy metal impurities that might be in the reagent. - Steve N Sharlene sent: Steve, I was taking Potassium iodide and eventually had a overdose reaction of sniffling or a hayfever reaction. I'm wondering if I had taken it with Potassium iodate, the iodine would have been more bioavailable to my cells and I wouldn't have had such a reaction. On the reagent grade is this safe to take internally? I'm not knowledgeable about grade levels. Thank you for the information. Sharlene
