I am looking to replace the salt shaker in my house with a "Salt Grinder" type salt shaker and would like any freeper suggestions on what brands or types of sea salt may be the best as well as any warnings on what I may want to avoid. Here is are some of the per-requisites that i would like with my salt grinder. 1. The Sea salt Must contain Iodine 2. The Sea salt Must contain Selenium 3. The Sea Salt MUST be free of any heavy metals or toxic metals. I have heard good things about Himalayan sea salt...