For me, that hasn't even been the case. I'm down 40lbs on a relatively low dose of Semaglutide and my muscle mass has moderately increased over the last 6 months. The hysteria over this is totally unfounded.
For me, that hasn't even been the case. I'm down 40lbs on a relatively low dose of Semaglutide and my muscle mass has moderately increased over the last 6 months. The hysteria over this is totally unfounded.
Yes, I am trying to hit 100-150g+ of protein per day, yes I am in a caloric deficit. No, I don't feel like I have lost any muscle mass, but I do feel a lot more active at 60lbs lighter.
It's good to work out. Perhaps it offsets any loss.
I get that it's upsetting and might contradict what you think.
At this stage we don't know for sure. It's something you might want to keep in mind. Especially if you take this drug without working out.
Also, concern of losing muscle mass on GLP-1 agonists (and diets in general) is well known and typically explained by the responsible MD to the patient.
This conversation does make me wonder about whether or not it would make sense to make the option available for people to go on exogenous testosterone (and yes potentially even women) while on these to help prevent muscle loss.
My DEXA scans seem roughly correlated with the amount of weight I can do in my regular sets, which has increased about 50-70% depending on which muscle group you are talking about.
This is with heavy resistance training 3 times a week and Pilates once a week.
Looking through my weightlifting app my best tracked exercise (leg press) increased about 250% from start with a 60% (roughly, speaking from memory) increase in lean muscle mass as measured by a DEXA scan. If I remember when back from dog walks tonight I’ll update that with a real number off the actual data.
I was a total newb at lifting though, so those early gains came quite quickly.
I am curious as this is a concern I have for long term health.
https://www.minimumdosetraining.com/ - free training program + links to a bunch of studies the author was involved in on this specific subject.
However, a lot of people either see results on these initial doses, and plenty of people find them to be effective as maintenance doses.
https://scholar.google.com/scholar?as_ylo=2024&q=glp+1+thyro...
https://www.liebertpub.com/doi/abs/10.1089/thy.2023.0530
> Overall there is no conclusive evidence of elevated thyroid cancer risk.
https://dom-pubs.onlinelibrary.wiley.com/doi/full/10.1111/do...
> Our meta-analysis showed that GLP-1RA treatment could be associated with a moderate increase in relative risk for thyroid cancer in clinical trials, with a small increase in absolute risk. Studies of longer duration are required to assess the clinical implications of this finding.
It's potentially a possibility, but the absolute risk seems to still be quite low.