>From this site:

http://www.quailwoodherbal.com/Lugol.html

I quote:

Precautions 
Sudden, large doses of iodine may impair the production of thyroid hormones, 
causing hypothyroidism temporarily in someone with otherwise normal thyroid 
function. 

Although I was only using 2 drops per day it IS powerful stuff.  Maybe this is 
what is happening to those of us who gain weight with lugols .........Just a 
thought.

Lisa