@Jam The product page of Prescribe for Life for Potassium Iodide (Potassium Iodide - Pure USP Powder - Averages 24% K / 76% I) says:
1 Drop of above solution on the inside of wrist. If it disappears in less than 4 hours, you are low in Iodine.
Have you tested using this method?
LUGOL’S SOLUTION 5% Solution ...
...Note: How to Test for Iodine Deficiency1 Drop of above solution on the inside of wrist. If it disappears in less than 4 hours, you are low in Iodine.
Have you tested using this method?