Yes, I have been steering clear of seed oils for years now. I cook with butter only. I even stay away from olive oil because it is not a saturated fat. I checked my thyroid function within the last year. It's healthy. I actually had to convince the doctor to include a T3 panel which is unorthodox. But how else can you get a holistic picture of thyroid function without T3 and reverse T3 status? Go figure I am an engineer by training but she has an MD. She did't even know the difference between Adderall and Modafinil. With doctors like these, who needs an angel of death.