Written by Jason Turco, who has personally run Retatrutide Electrician. Foreman. Lifter. No conflicts of interest.
Every extra pound you carry puts 3 to 5 pounds of additional pressure on your knees every time you take a step. On a job site, you take thousands of steps a day. GLP-1s aren't a shortcut. They're a tool. Here's what you need to know about the three that matter.
Break It DownTradesmen don't sit at desks. You're on your knees running wire, crawling through attics, climbing ladders, carrying material. Your body takes a beating every single day.
What most guys don't connect is that the extra weight they're carrying is actively making every joint problem worse. Every pound on your frame multiplies the load on your knees, hips, and lower back throughout the workday.
GLP-1s suppress appetite and change how your body handles food at a hormonal level. The result is sustained, consistent weight loss that takes real pressure off the joints you're relying on to do your job. Less load equals less pain equals better output.
This is why GLP-1s belong in the same conversation as BPC-157 and TB-500 for tradesmen. You can repair the tissue all you want. But if you're still grinding it down with extra weight every single day, you're fighting yourself.
Three compounds. Different mechanisms. Different strengths. Here's the plain-English breakdown so you can have an actual conversation about which one fits your situation.
The newest and most powerful GLP-1 class compound currently available. Where semaglutide hits one receptor and tirzepatide hits two, retatrutide hits three: GLP-1, GIP, and glucagon. That triple mechanism is why the weight loss numbers in clinical trials came in significantly higher than anything before it.
Adding the glucagon receptor into the mix increases energy expenditure on top of appetite suppression. Your body is burning more and eating less at the same time. The fat loss is faster and more complete.
I've personally run this. The appetite suppression is aggressive, especially early. Titration matters. You don't want to start at a high dose.
Guys who have done their homework and want maximum results. Not the starting point, but the destination for serious users.
Sold under brand names Mounjaro and Zepbound, tirzepatide hits both GLP-1 and GIP receptors. The GIP addition is what separates it from semaglutide and gives it an edge on appetite suppression specifically.
If your main problem is food noise, constant hunger, and the inability to control portions after a long day on the tools, tirzepatide addresses that more aggressively than semaglutide. The GIP receptor also plays a role in how your body stores fat, giving it a slight metabolic edge.
It's FDA approved for obesity and type 2 diabetes, which means it has real clinical backing and is available through legit channels with a prescription.
Guys where hunger is the main obstacle. Strong appetite suppression with a solid safety profile and real clinical data behind it.
The one most people have heard of. Ozempic and Wegovy are both semaglutide. It's a GLP-1 receptor agonist that slows gastric emptying, reduces appetite, and helps regulate blood sugar.
The reason semaglutide matters is the data. It has the most clinical trials, the most long-term safety data, and the most real-world use of any compound in this class. If you want to know exactly what you're getting into, semaglutide is the most mapped-out option.
The weight loss numbers are lower than tirzepatide or retatrutide, but for someone who's never used a GLP-1 before and wants to start with the most understood compound, it's a legitimate entry point.
First-time GLP-1 users who want the best-understood compound with the most long-term data available.
The key numbers and differences in one place.
| Semaglutide | Tirzepatide | Retatrutide | |
|---|---|---|---|
| Mechanism | GLP-1 | GLP-1 + GIP | GLP-1 + GIP + Glucagon |
| Weight Loss (Trials) | ~10-15% | ~15-20% | ~15-24% |
| Appetite Suppression | Strong | Very Strong | Aggressive |
| Dosing | Weekly | Weekly | Weekly |
| FDA Status | Approved | Approved | Phase 3 / Research |
| Clinical Data | Most extensive | Solid | Growing |
| Best Starting Point | Yes | Yes | Experienced users |
| Jason's Experience | Research only | Research only | Personally run |
I'm an electrician and foreman. I've spent years on job sites where guys are carrying weight they don't want, dealing with joint pain they think they just have to live with, and not sleeping well. I've been there.
I've also been a serious lifter for over 20 years. When retatrutide started getting real traction I did what I always do: I read everything I could find, understood the mechanism, and eventually ran it myself. What I experienced was real and significant.
The problem with GLP-1 information out there is that it's either written for middle-aged women trying to lose 15 pounds for a wedding or for people deep in the clinical research world. Nobody is talking to the guy who's 40 pounds over where he wants to be, whose knees are shot from years of kneeling, and who wants straight answers without the BS.
That's who this is for. If you want to talk through which compound makes sense for your situation, that's exactly what a protocol review is for.
Every situation is different. Weight, goals, work demands, what you've already tried. A protocol review is a direct conversation with Jason to figure out what actually makes sense for you.
Book a Protocol Review