I’ve probably had low thyroid since I hit puberty (I’m 26 now), honestly, but the only symptoms I really have are that my thyroid looks like my throat is going to give birth to an alien lovechild, and I have a hard time losing weight. And low energy, I guess. I don’t have the other classic symptoms like getting cold easily (I’m the opposite), brittle hair, brittle nails, dry skin. I haven’t had health insurance since high school, so I haven’t had my thyroid evaluated by a doctor. In fact, my mom’s bumblef.ck small-town doctor who looked at my throat when I was in high school told me my thymus was enlarged (maybe he didn’t do so well in anatomy?). Regardless, my thyroid has been having a rough ride, probably not helped by my childhood/teenage/ongoing obsession with peanuts (goitrogen), my soy-filled transition to vegetarian/veganism (goitrogen), and my love of raw broccoli (goitrogen).
I have only recently started learning about all of this, so I’m not sure how much advice I can offer, but I’ve been taking seaweed-derived iodine for a week or two now, and I stopped eating raw brassicas, and I’ve been trying to eat more non-brassicas, like asparagus and swiss chard and celery. Even if I had health insurance, I would be averse to taking supplementary thyroid hormone, since I’ve read that taking it synthetically can suppress your body’s mechanism for making it naturally. I want my thyroid to recover, not to use medication for the rest of my life. I’m okay with that taking a while. I guess candida has made me patient, sort of. Even just since getting off peanuts, millet, and what soy I was still eating before I started the candida diet seems to have helped me out, since I’ve been losing weight a bit again and my energy is getting better.
As for sauerkraut, I’ve been mulling this over for a few weeks, and I’ve decided to stick with eating it. I think the benefits outweigh the risks. I guess you would have to evaluate that for yourself. If you find any information about this, I’d be interested.
Sorry to not be much help. :/ I’m also in the learning phase. I hope you get things figured out!