Thyroid 101: T4, T3 & RT3 ⏱ 4:20
Updated May 5, 2025
Thyroid Program
To begin any discussion of thyroid, we have to have a basic understanding of the difference between T4, T3 and Reverse-T3 (RT3), as well as basic information about TSH (Thyroid Stimulating Hormone). The videos to the right will get you started. The table below is for those who are more detail-oriented. All the videos including Thyroid 201 and Adrenals are here **.
** = new browser tab will open
Thyroid Molecules
Videos by Dr. Cheikin
Dr. Cheikin uses an approach to thyroid that relies on Reverse-T3 rather than TSH. These are the first in a series of videos that Dr. Cheikin has created to understand this approach.
Thyroid Education: Start Here
Videos by Dr. Cheikin
