Yes
Sema only mimick GLP-1 (Glucagon-like peptide 1)(read: is an agonist).
Tirz mimick both GIP (Glucose-dependent insulinotropic polypeptide) and GLP-1 (in a ration of 9:1). (contains two agonists).
GIP actually release more Glucagon as a sideeffect; but it releases even more insulin, so tirz still works.
Glucagon is a bit complicated (it does several things) but its basically the opposite of insulin (insulin lowers blood glucose and Glucagon raises it).
So in Reta they added a glucagon antagonist to the mix, that works by blocking the action of glucagon at its receptor. This means it prevents glucagon from binding to its receptor and exerting its effects, which lead to a decrease in blood sugar levels compared to tirz.
All of this is theory obviously.
There is thing things regarding it that I can’t seem to fit with peoples real life experiences.
Glucagon does not cause muscle loss if not in a hypoglycemic state and even in that state it first uses glycogen storage. So no blocking glucagon receptor would not be beneficial and can actually hurt since it's necessary to keep blood glucose stable during exercise.@DanishPanther Is glucagon antagonist beneficial for muscle hypertrophy? I know insulin is very anabolic for growing muscles.
I have stayed at 2.5 for 6 months with slow and steady weight loss. I did not see a reason the up my dose as long as I was losing. Others need tof ollow the pharma sked. Everyone is different. I am at my goal weight and trying to figure out a good maintenance dose.
Glucagon does not cause muscle loss if not in a hypoglycemic state and even in that state it first uses glycogen storage. So no blocking glucagon receptor would not be beneficial and can actually hurt since it's necessary to keep blood glucose stable during exercise.
I think you should worry more on the gastric emptying and appetite suppression when it comes to muscle growth.Thank you @mochul
Tirzepatide increases GIP which increases Glucagon.
Would this be a problem for building muscle?
Semaglutid does for me. Tirzepatide is a lot better in this regards. Energy level is better on tirz as well.