An unexpected finding: a member of the Facebook GD support group had posted that she was taking selenium. Her GD was in remission. She, for some reason, stopped the selenium and her GD came back. Went back on selenium and GD went back into remission. That was interesting to me because I've been traveling and forgot my Brazil nuts which I take for selenium (1 per day) and my GD was rearing its ugly head. I didn't make the connection, but when I read that, I went to the store and got some Brazil nuts, went back to one a day and the GD receded but didn't disappear completely. So then I went back to the literature to see what levels of selenium are safe and found that 400 mcg is the upper limit. Brazil nuts are about 90 mcg per nut. So now I am taking two Brazil nuts per day and I will see if that does more than the one nut per day. Stay tuned. As an aside, I had been taking hyaluronic acid - approximately 100 mg/day. I upped it to 200 mg a day because my knees were bothering me. My facial skin looks so great, I look like I've had a face lift. Crazy. Going to stay at this level. I use the Bulk Supplements HA powder. (I can't swallow pills.) ⅛ teaspoon dissolved in water the night before is a bit over 200 mg. It has zero flavor but takes about 12 hours to dissolve fully in water. Forest Leaf HA pills are also good. You only want high molecular weight HA (low molecular weight HA is pro-inflammatory. High molecular weight is anti-inflammatory.)