I was just given this link which shows research findings suggesting that the supplements Myo-Inositol and Selenium combined helps to reduce autoantibodies in Hashimoto's thyroid patients.
Thank you to Simone who passed it on to me.
It based on research done in 2017.
It is called: "Treatment with Myo-Inositol and Selenium Ensures Euthyroidism in Patients with Autoimmune Thyroiditis" by Maurizio Nordio * and Sabrina Basciani.
Here is the link: