A New 5 Receptor Agonist

deleted.user.16 said:

Vash_ said:

Seriously, why bother? Reta has already been demonstrated to reduce body weight by 30% in people. That alone is absurd. Who actually requires a treatment that works even better?
30% on average possibly.

Some individuals in Retatrutide trials dropped just 5% of their body weight even after close to 12 months of use. Surely they'd welcome a different choice!

And for certain people, 30% could still fall short. Suppose you begin at 300lb or more? You go on Reta, hit a plateau at 210, perhaps you'd prefer a more potent option to bring you down into the 100s.
Yeah, that's exactly the problem I'm dealing with right now. At my heaviest I was roughly 360lbs, and when I began mounjaro/tirzepatide I weighed 339.2lbs. After a year on Mounjaro, I'm sitting at about 266lbs now.

I've still got 75lbs-85lbs left to shed, and I moved over to reta, but so far it hasn't done much for me. The weight hasn't come off much, and the appetite suppression doesn't match what I had on Mounjaro. With reta, I notice I'm able to eat considerably more before feeling full, compared to mounjaro.

When it comes to weight loss drugs helping people with severe obesity like myself, there's clearly a lot of room to do better.

It seems to me that today's weight loss drug options are aimed more at the overweight group than at the obese/severely obese. Fingers crossed one of these big pharma companies comes out with a tirzepatide/retatrutide for folks in my situation, who need to drop nearly half their body weight or more.
 
lessthanhalf said:

Jfrick11 said:

lessthanhalf said:

Beardboost said:

I doubt it will make it anywhere near trial approval — the danger profile is just too large. Amylin slows digestion down even further, wipes out cravings (that part is good) and leaves you feeling stuffed for hours on end, which raises the odds of heart burn, plus you end up eating far below what your body actually needs to stay healthy. Then Calcitonin enters the picture and cuts the brain off entirely from hunger signals. When GLP-1's help with weight loss and mental health, I'm all for them, but I strongly believe in pairing any GLP with real lifestyle changes — planning meals, eating on a steady schedule, building habits you can actually sustain so the weight stays off. Shutting hunger out of the mind completely while cutting food intake is a wrecking ball waiting to happen.
A number of members here are already, in practice, using a very close combination: reta along with cagrilintide, and for them it has been working rather effectively.

One clear situation in which GLP drugs deliver weaker weight loss results is among diabetics. Even when blood sugar control is excellent, the pounds shed tend to be noticeably lower than what non diabetics experience, which is why weight loss trials are run separately for those two populations. That makes diabetics another group who might gain from improved GLP options.

I would like to hear how severe the obesity is that Beardboost is addressing through GLP's alongside lifestyle, diet and exercise. The view that GLP's play only a modest role in the overall solution tends to come from individuals who are not dealing with severe obesity. If my guess about where this poster is coming from is mistaken, please set me straight.

Among people whose obesity is more severe, many have devoted decades to losing and keeping off weight through diet, exercise and lifestyle changes, only for those efforts to work at best temporarily. For them, GLP medications are the answer. They also make subsequent adjustments to lifestyle, diet and exercise simpler and easier to sustain. Those things are not meaningless, but decades of personal experience and a large body of scientific research indicate they mostly fail to produce or hold onto substantial weight loss, apart from a fortunate or unusually determined minority. GLP medications, by contrast, show strong success rates, though not universally, and keep that weight off over the long term as long as the medication is continued.
There’s a chunk of your argument I’m on board with, particularly when it comes to severe obesity. For many individuals, medication ends up being the first intervention that delivers lasting results after years of cycling through every other option.

And the distinction between diabetic and non diabetic outcomes is real, that part isn’t up for debate.

Where I’d push back is the idea that meds are the answer and that for this group, everything else barely moves the needle.

Take something like Retaor stacked with Cagri. What the drug is doing is altering appetite, satiety, and how glucose is processed. The fundamental physiology underneath isn’t being swapped out.

When someone has severe obesity, those deeper drivers tend to be louder, not quieter. Insulin runs higher, metabolic adaptation is greater, and the body fights weight loss harder. A more potent medication doesn’t erase any of that.

On top of that, plenty of people have tried diet and exercise, but not in a form that protects muscle, keeps metabolism supported, or can be maintained over time. Years of undereating plus cardio is a totally different animal from eating enough, making protein a priority, and lifting weights consistently.

Do the meds make all of that more manageable? 100%. But those behaviors still shape how far a person gets and whether progress grinds to a halt.

So framing it as meds against lifestyle doesn’t fit for me.

What’s really happening is that the meds finally let lifestyle changes do what they were always meant to do.
GLP medications genuinely address many of the metabolic issues underneath: they lower blood sugar, blood pressure, lipids and insulin resistance, partly through direct drug action and partly because of the weight that gets lost.

When diet and exercise are used as the answer to obesity, even in a highly optimized form, the difficulty lies in the long run. Sustaining that requires deliberate mental effort or restraint, or at least almost always does; turning improved health behaviors into automatic habits is not impossible, but it is hard and most people fail to do it. And the trouble with relying on cognitive effort to solve a long-term problem is that people simply have finite reserves of it, and those reserves eventually run dry. Keeping up that effort is draining both mentally and physically, so eventually old behavior patterns return. To be fair, people with particularly severe obesity are on average probably worse than average at sticking with healthy eating and exercise, which is undoubtedly part of why they became obese. That is not a moral failure; it is just normal human variation, combined with an obesogenic environment, and once obesity develops, exercising becomes harder, and the appetite regulation system begins to progressively malfunction as hormonal and neurotransmitter regulatory systems stop working correctly under the metabolic stress of obesity.

Before GLP drugs existed, long-term weight loss of 5% or more, and rarely 10%, was regarded as a major success in diet-and-exercise treatment for obesity, since even this modest loss substantially lowers long-term health consequences. Everything I have ever seen indicates that any weight-loss intervention short of surgery fails over the long term, with nearly everyone regaining the weight eventually after the intervention stops, and sustaining any intervention long term runs straight into the cognitive effort or cognitive restraint problem.

GLP drugs sidestep the cognitive effort problem entirely, because 1 injection per week is not exactly difficult compared with adhering to a 1600 or 1800 calorie diet long term, and over time they simply keep working as long as you keep taking them. In my view, the evidence from the studies and on this forum demonstrates their effectiveness well, and shows that it is maintained long term. Better diet and exercise matter, but people who take GLP drugs for obesity without making any special lifestyle effort still lose weight. There is also evidence that GLP drugs improve people's food choices, and from personal experience it is far easier to exercise at normal or near-normal weights than when severely obese.

My position is that diet and exercise are a largely ineffective therapy for obesity, judging by long-term results from thousands of studies across decades: not completely useless or pointless, but with very poor long-term success rates. GLP drugs simply work, aside from a few people who get bad side effects or respond poorly to them. For the large majority, though, they enable significant long-term weight loss of 10-30%, with extra health benefits as a bonus.
There’s a lot in your post I fully agree with — particularly the point that sustained weight loss is incredibly difficult, and that GLP medications are a massive help for hunger and for staying consistent. For the majority of people, they change everything.

And you’re right that they clearly help blood sugar, insulin resistance, and lipids — partly through direct effects and partly through the weight that comes off.

Where I’d push back is the leap to saying they essentially remove the need for lifestyle, or that diet and exercise barely matter.

Even with something like Reta or other GLP-based drugs, the underlying system isn’t being fully corrected — it’s being better regulated. Those are not the same thing.

The regain issue is genuine, but much of it traces back to how the weight was lost in the first place. Constant undereating, zero resistance training, heavy lean mass losses, and never adjusting intake along the way. That combination practically guarantees regain.

Muscle drives metabolic rate and glucose disposal more than almost anything else. If you don’t protect it — or even improve it — you end up with a slower metabolism, more frequent stalls, and an easier path back to regain later.

Lifting three times per week isn’t a nice-to-have if insulin sensitivity, bone density, testosterone tone, and physical capability in your 60s and 70s matter to you.

So the goal isn’t just weight loss — it’s the composition of what you lose and where your metabolic health lands at the end. Muscle isn’t cosmetic; it’s metabolic currency.

When the medication is properly supported with sufficient protein, resistance training, and calories that aren’t driven too low, you’re not merely dropping pounds — you’re rebuilding the foundation in a way that holds up better. The med alone can’t accomplish that.

So the claim that meds completely bypass effort isn’t quite right. They lower the barrier, no question, but plateaus still happen, muscle still gets lost beyond what it should, and regain still occurs if nothing else changes and the med stops... or even if it doesn’t.

That’s why I don’t frame it as meds versus lifestyle.

It’s closer to this: the meds create the conditions for lifestyle changes to finally take hold, especially for those who’ve spent years struggling. But how far someone gets and how well they keep it still hinges heavily on what they do alongside the medication.
 
cheaperseeker said:

FlowerFairy said:

cheaperseeker said:

lessthanhalf said:

Jfrick11 said:

lessthanhalf said:

Beardboost said:

I doubt it will make it anywhere near trial approval — the danger profile is just too large. Amylin slows digestion down even further, wipes out cravings (that part is good) and leaves you feeling stuffed for hours on end, which raises the odds of heart burn, plus you end up eating far below what your body actually needs to stay healthy. Then Calcitonin enters the picture and cuts the brain off entirely from hunger signals. When GLP-1's help with weight loss and mental health, I'm all for them, but I strongly believe in pairing any GLP with real lifestyle changes — planning meals, eating on a steady schedule, building habits you can actually sustain so the weight stays off. Shutting hunger out of the mind completely while cutting food intake is a wrecking ball waiting to happen.
A number of members here are already, in practice, using a very close combination: reta along with cagrilintide, and for them it has been working rather effectively.

One clear situation in which GLP drugs deliver weaker weight loss results is among diabetics. Even when blood sugar control is excellent, the pounds shed tend to be noticeably lower than what non diabetics experience, which is why weight loss trials are run separately for those two populations. That makes diabetics another group who might gain from improved GLP options.

I would like to hear how severe the obesity is that Beardboost is addressing through GLP's alongside lifestyle, diet and exercise. The view that GLP's play only a modest role in the overall solution tends to come from individuals who are not dealing with severe obesity. If my guess about where this poster is coming from is mistaken, please set me straight.

Among people whose obesity is more severe, many have devoted decades to losing and keeping off weight through diet, exercise and lifestyle changes, only for those efforts to work at best temporarily. For them, GLP medications are the answer. They also make subsequent adjustments to lifestyle, diet and exercise simpler and easier to sustain. Those things are not meaningless, but decades of personal experience and a large body of scientific research indicate they mostly fail to produce or hold onto substantial weight loss, apart from a fortunate or unusually determined minority. GLP medications, by contrast, show strong success rates, though not universally, and keep that weight off over the long term as long as the medication is continued.
There’s a chunk of your argument I’m on board with, particularly when it comes to severe obesity. For many individuals, medication ends up being the first intervention that delivers lasting results after years of cycling through every other option.

And the distinction between diabetic and non diabetic outcomes is real, that part isn’t up for debate.

Where I’d push back is the idea that meds are the answer and that for this group, everything else barely moves the needle.

Take something like Retaor stacked with Cagri. What the drug is doing is altering appetite, satiety, and how glucose is processed. The fundamental physiology underneath isn’t being swapped out.

When someone has severe obesity, those deeper drivers tend to be louder, not quieter. Insulin runs higher, metabolic adaptation is greater, and the body fights weight loss harder. A more potent medication doesn’t erase any of that.

On top of that, plenty of people have tried diet and exercise, but not in a form that protects muscle, keeps metabolism supported, or can be maintained over time. Years of undereating plus cardio is a totally different animal from eating enough, making protein a priority, and lifting weights consistently.

Do the meds make all of that more manageable? 100%. But those behaviors still shape how far a person gets and whether progress grinds to a halt.

So framing it as meds against lifestyle doesn’t fit for me.

What’s really happening is that the meds finally let lifestyle changes do what they were always meant to do.
GLP medications genuinely address many of the metabolic issues underneath: they lower blood sugar, blood pressure, lipids and insulin resistance, partly through direct drug action and partly because of the weight that gets lost.

When diet and exercise are used as the answer to obesity, even in a highly optimized form, the difficulty lies in the long run. Sustaining that requires deliberate mental effort or restraint, or at least almost always does; turning improved health behaviors into automatic habits is not impossible, but it is hard and most people fail to do it. And the trouble with relying on cognitive effort to solve a long-term problem is that people simply have finite reserves of it, and those reserves eventually run dry. Keeping up that effort is draining both mentally and physically, so eventually old behavior patterns return. To be fair, people with particularly severe obesity are on average probably worse than average at sticking with healthy eating and exercise, which is undoubtedly part of why they became obese. That is not a moral failure; it is just normal human variation, combined with an obesogenic environment, and once obesity develops, exercising becomes harder, and the appetite regulation system begins to progressively malfunction as hormonal and neurotransmitter regulatory systems stop working correctly under the metabolic stress of obesity.

Before GLP drugs existed, long-term weight loss of 5% or more, and rarely 10%, was regarded as a major success in diet-and-exercise treatment for obesity, since even this modest loss substantially lowers long-term health consequences. Everything I have ever seen indicates that any weight-loss intervention short of surgery fails over the long term, with nearly everyone regaining the weight eventually after the intervention stops, and sustaining any intervention long term runs straight into the cognitive effort or cognitive restraint problem.

GLP drugs sidestep the cognitive effort problem entirely, because 1 injection per week is not exactly difficult compared with adhering to a 1600 or 1800 calorie diet long term, and over time they simply keep working as long as you keep taking them. In my view, the evidence from the studies and on this forum demonstrates their effectiveness well, and shows that it is maintained long term. Better diet and exercise matter, but people who take GLP drugs for obesity without making any special lifestyle effort still lose weight. There is also evidence that GLP drugs improve people's food choices, and from personal experience it is far easier to exercise at normal or near-normal weights than when severely obese.

My position is that diet and exercise are a largely ineffective therapy for obesity, judging by long-term results from thousands of studies across decades: not completely useless or pointless, but with very poor long-term success rates. GLP drugs simply work, aside from a few people who get bad side effects or respond poorly to them. For the large majority, though, they enable significant long-term weight loss of 10-30%, with extra health benefits as a bonus.
100% with you. Constantly thinking about food, every single day - what's on your plate, what's coming next, which tactics you'll rely on at holiday gatherings, logging everything, fighting the urge to keep eating once you've reached your limit while your body insists you're still hungry, how to resist the donuts a coworker brought in when you're stressed and hungry, and so on - that's an enormous mental burden, and for the majority of people it simply can't be sustained for a lifetime.

I also know a handful of people who went through the surgery and ended up regaining the weight anyway.
The operation I'd been cleared for was altered by my surgeon. He never put the changes in writing — in effect, my operative report was falsified regarding what he actually did. He only came clean to me once my weight loss halted, after roughly 110 lbs had come off, and after I'd already spent time working with his office to figure out the cause of the stall. When he finally admitted it, I asked when the revision I'd paid for would happen. He told me he didn't believe in revisions, and that I counted as a statistical success since I'd dropped over 100 lbs. I had no way out. Still severely obese. Proving anything was impossible, because his admission came by phone, not on paper. Nothing helped until GLPs. I'll stay on them for the rest of my life.
Have you consulted an attorney? Perhaps an MRI or a similar scan could demonstrate what he did.
Yes, I did. What complicates it is that a few individuals end up with a longer small intestine after the operation, which means his lawyer might argue it simply stretched during the recovery period. As for me, I doubt mine has changed, and I also doubt my reworked stomach enlarged, since eating even 1 extra bite of rice leaves me deeply regretting it and likely throwing up. I suppose rice and bread expand a huge amount.

There was actually a guy I knew who went through revision 3 separate times, all because his small intestine kept getting longer. I began to suspect he might be partly starfish.
 
cheaperseeker said:

Smiter said:

I'm fully on board, 100%, that diet and exercise alone won't solve the obesity pandemic. Where I differ is on cognitive load being the culprit. My take is that endocrine malfunction is what's driving this. What people call food noise probably comes from too much ghrelin, which happens because of leptin resistance. Test can bring on roid rage, so it stands to reason that other hormones can shape behavior as well.
My view is that the two go hand in hand. Endocrine dysfunction sits at the root, while the cognitive load is what shows up on the surface. Despite already getting plenty of nutrition, our hormones kept signaling starvation. That gap is exactly where GLPs come in, reaching what diet and exercise alone cannot.
Food noise has never been something I dealt with. After my surgical gastric reduction, overeating wasn't a problem either. Sweets were never a craving for me. What I do crave is odd things—liver, steak, fish. My first weight loss came through an intestinal bypass, and these days it's glps. Restrictive diets were imposed on me from the time I was 8, and my sister would go around telling people she felt lucky not to need dieting since she lacked my willpower. So for some people it could be both, yes—but that doesn't hold for everyone.

Being active was a constant for me too. Grade school meant softball and competitive swimming; in high school and college I played JV soccer and kept lifting weights the whole time I was on teams. Compared to most of my friends I'm still more active now, though next to my younger self I feel like a slug. Muscle has always been there for me.
 
I recall coming across information about several studies focused on 4- and/or 5-receptor agonist options, which aim to lessen or do away with the muscle loss problems tied to today's GLP1 products. Only time will reveal the outcome.
 
Out of the 2 new agonists, the one I find most interesting is the compound Lily was developing through a different program as a standalone medication — the one that prevents the body from breaking down muscle while in a deficit. Plenty of people, as I understand it, have a hard time taking in adequate protein while losing weight on GLP's, and that intake is the main thing that guards against muscle being lost.
 
I keep asking myself: when a pharma company already has a candidate in trials and has sunk cash into it, why would they bother chasing something superior? Would they really roll out an improved version before they've recouped what they poured into the one currently under development? I don't know how that plays out.
 
Peotidethrowaway said:

I'm curious how soon this will show up on the grey market
All it takes is a handful of venture capitalists willing to operate in morally grey territory, plus either a supplier able to source the stuff, or an Alibaba compounder ready to whip up anything short of quaaludes. Same story for anyone who prison-purses a couple vials of trevogrumab and garetasumab over to China. im totally kidding dont take this seriously do not do anything i just said
 
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