@elle_em I hope all goes well for you. I'd like to express my sympathy, and I wish you good luck and a full recovery. I wish I could help more but I don't know much about cancer and chemo.
But I see you are being advised to take iodine. Please also look into the possible harms of iodine excess so that you can make an informed decision.
The inspiration for this forum, Ray Peat, was opposed to high dose iodine supplementation. He referred to high dose iodine as "very toxic," promoted by a cult of "crazies."
No offense intended, Luch, but I have to say it. I know you mean well too, but I don't want to see someone harmed.
Resources about the harms of iodine excess:
"I was seeing new patients almost weekly who developed thyroid disease after attempting high dose iodine." - from:
https://www.drchristianson.com/blog/the-iodine-controversy/
This article tries to explain both sides of the iodine debate:
https://www.westonaprice.org/health-topics/modern-diseases/the-great-iodine-debate/#gsc.tab=0
Info about iodine excess that I've collected:
https://bioenergetic.forum/topic/3927/iodine-too-much
I know it's hard to be getting all kinds of conflicting advice during a stressful time. Again, I wish you good luck.