Hi! Before taking mounjaro I read a lot about it. One of the first articles I read was about how rats given mounjaro developed thyroid cancer, pretty much all of them.
It completely put me off and I decided not to take it.
After a few months I decided to re-visit the research and read more. I have since discovered that actually in human studies, there doesn't appear to be a significant risk of developing thyroid cancer on GLP1s. However, the rat study is of concern and I think, as far as I can tell, the medical profession feels that based on the limited research to date, it's ok for people with NO risk of developing thyroid cancer, to take GLP1s. However, for people with a family history, given the rat study findings, the advice is not to take it.
It feels horrible to say, because I am incredibly lucky to be taking mounjaro and it feels v unfair that not everyone can benefit from it, but in your position I absolutely wouldn't take it. The research to date does place you at greater risk of developing thyroid cancer. I think the feeling among scientists is, if anyone is going to get thyroid cancer as a result of a GLP1, it will be those at current greatest risk due to family history.
Things might change in the future once more research is done. But for now, I wouldn't risk it on your position