I read that soy interferes with the absorption of thyroid medication. I am interest in Estroven.?

At 57 I have some menopause issues and would rather try the natural route of Estroven instead of HRT. I had graves disease and have been taking thyroid meds for 15 years now. Just don't want to take anything that may interfere with the absorption of my thyroid medication. It took a while to get the right level of thyroid medication balanced.