I guess I was not thinking of kelp as a food since I take it in pill form. But yes, my potassium was high. I was cold often. Now Im hot when i take kelp and my fingers swell. So I backed off the kelp and just take the minimum. However, I did read online, cant remember where! that the iodine in kelp can be a problem if too much kelp is taken. of course I realize we can over do anything., But Im talking 5 instead of 2 tablets for example.