Couldnt tolerate levothyroxine so took just quarter tablet of Nutri Thyroid daily. Worked fine for 4 years or so until Nutri changed something. I noticed because I always took it suspended in water and instead of dispersing it floated. Put this down to minor changes to ingredients list. However there was gradual but steady decline in health from starting new formula in October 2016,which resulted in physical collapse in March 2017 when I lost use of my legs. Went in to hospital reluctantly in April and was treated with levothyroxine and steroids,which stabilised thyroid function, but after surviving hospital acquired pneumonia and kidney damage due to dehydration I suffered a stroke resulting in epilepsy. I am still bedridden now after two years.
I read about FDA investigations into the US manufacturer regarding use of hormones, but can't find any conclusion on line. Has anyone else had similar experience?