Thyroid hormone and growth hormone are critical for metabolism, influencing nutrient utilization, body fat stores, and the repair of muscle and cartilage.

“And so now hopefully you have a better understanding about their underlying biology. And you can think rationally about whether or not they are the right decision for you. Okay, once again, covered an enormous amount of material. Hopefully, now you understand thyroid hormone and what it does and a little bit about its mechanism or maybe a lot and growth hormone and what it does and how both of them take care of our metabolism. They dictate how many nutrients we can eat and make use of. They can pull from body fat stores, repair muscle, repair cartilage. They really are incredible compounds.”