A full functioning thyroid system is very important in heart health too. We prefer and use this iodine brand. Sometimes Lugol's is used, if in a pinch.
However, it is important to use iodine with selenium and L-Tyrosine. Using it along with a full vitamin and colloidal mineral supplement is the best.
And keep in mind the Adrenals can also be fatigued. Diabetes can also be present along with hypothyroidism. The Adrenal Reset Summit talked about this.
Selenium in bulk: BIOSEL 5000 L-SELENOMETHIONINE - 1-800-282-3982 or email email@example.com!
L-Tyrosine (in bulk and gelatin capsules): gel caps: http://amzn.to/2gzY95K or bulk powder: http://amzn.to/2gk1Ido
Best to buy in bulk, due to the ongoing contamination and compromised fancy supplements companies, because in one way or another, all have compromised on some products, and some products may be okay.