This isn’t true. Iodine doesn’t suppress the thyroid. It can raise TSH when taking higher dosages tho, but it’s only a temporary elevation. She most likely didn’t feel good on it because she started off with too high of a dosage, was taking too high of a dosage in general, and wasn’t taking in enough of the needed cofactorsHer thyroid was borderline and taking iodine if you don’t need it suppresses the thyroid more, iodine can help IF deficient