Rock salt is best... Well u can go through any brand..

All brands are iodized salts. Make sure you add the salt at the end of cooking as heat destroys iodine.

Go for Himalayan rock/ pink salt.

Although every salt is iodised but u can prefer puro healthy salt.

Any iodized salt

Hello Ma'am, Well, any iodised salt will do. No big deal. But for your thyroid issue you can have this medicine, * कांचनार गुग्गुळ - 1 tablet twice a day. It's a very well known Ayurvedic Medicine. 100% herbal. With NO side effects. It helps to improve thyroid function. I would be able to guide you well if you could share some more details and lab reports. Thank you..!

Consune non processed himalaya salt

Any   salt  of  any  brand. But  should  be  less  in  quantity.

Almost all branded salt are iodised