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Kratom is bad for those of us with thyroid disease according to what little info is a available.

Oh, ok.
The late night radio folks say thyroid problems are nutrional?

Mine's autoimmune. My diet is far better than the average American's, and I grew up eating home-grown veggies. I'm sure you mean well, but you cannot comprehend how tired I am of quacks offering empty advice. Believe me, by now it's been tried.

Hmm, I don't have it, so I wouldn't know.
Maybe this one?

https://stss.nl/stss-materials/English/Books/Science%20of%20Survival%20SOS.pdf

It helps some people.