Please see the following article:

Article Vitamin D and thyroid disorders: a systematic review and Met...

Kindly see the following link:

https://mlj.goums.ac.ir/article-1-1101-en.pdf

May be.

See also the following link:

https://www.frontiersin.org/articles/10.3389/fimmu.2021.574967/full

The following link may be helpful in this regard:

https://www.nature.com/articles/ejcn2014265

Vitamin D supplementation is a hoax.

A different gene in the Vitamin D receptor was shown to predispose people to autoimmune thyroid disease including Graves' disease and Hashimoto's thyroiditis. Vitamin D inhibits the production of Th1 polarizing cytokine (IL-12), thereby indirectly shifting the polarization of T cells from a Th1 toward a Th2 phenotype.