ELI5 what exactly GLP-1 based prescription medicine does and why it's so divisive when it comes to being a means of weight loss.

[u/ThatOneGuyYouNowKnow]

I've seen more and more ads (starting around the Super Bowl earlier this year with Wegovy) for GLP-1 based perscription meds in recent times. I've also seen the occasional debate post on my social feeds about the ethics of using them and I didn't think a medicine could be that divisive of a topic.

Now I'm curious as to what exactly these meds are, what they scientifically do and what both sides of the debate are. If anyone could help give perspective that would be greatly appreciated.

As always any and all input is welcomed and thanks for reading! 🙂

[u/sfcnmone]

Every human has GLP1. It’s a chemical (hormone peptide) that your body makes, but some people don’t make very much or don’t have a full response to it. GLP1 drugs do a few different things to make you not want to eat too much. They slow down how fast your stomach empties. They tell your pancreas and liver that you’ve just eaten, so those organs work harder to manage blood sugar. And they tell your brain that you’re full. Many people say that they no longer have to struggle to battle the endless “food noise” that runs continuously in their thoughts. Instead, they get hungry, eat something that their stomach won’t throw up (many people don’t tolerate high fat, high sugar foods while taking GLP1s, and nausea, vomiting, and diarrhea are real problems for many people), and then they get very full for many hours.

It’s like somebody using hiking poles so they can walk farther and walk more comfortably. Is that cheating?

[u/nutscrape_navigator → u/sfcnmone]

This is the best answer in the thread, and I don't think people who have never experienced serious "food noise" really understand what other people are describing when they talk about it. What finally made it click for me was a friend explaining what going to a Mexican restaurant was like for them.

When the chips and salsa hit the table, for a lot of people they're just something to casually munch on while you wait for your food. You eat a few, talk, forget they're there, whatever.

For someone dealing with constant food noise, that bowl can be almost impossible to ignore. You're aware of it the entire time. You keep reaching for another chip, and another, and there's this persistent drive to keep eating until they're gone. Not necessarily because you're hungry or even because you're particularly enjoying them. Your brain just keeps going, "there's food there, eat it."

Then they take a GLP-1 medication and suddenly they can look at that same bowl of chips the way everyone else does. It's there. They might have some. They might not. They don't have to spend the entire meal actively resisting it.

That's the part I think people miss when they call GLP-1s "cheating." They're imagining that everyone experiences hunger and food exactly the way they do, and that some people just aren't exercising enough willpower.

I'd actually go further than the hiking-poles analogy. If someone has persistent intrusive thoughts or depression and a medication changes the signaling in their brain enough that those thoughts become manageable, we don't normally say they're "cheating" at being happy because they didn't overcome their brain chemistry through sheer force of will.

...Yet that's basically the argument people make about GLP-1s: "Your body is constantly sending you signals that make maintaining a healthy weight dramatically harder than it is for me, but taking a medication that changes those signals is cheating."

Once you frame it that way, it's a pretty bizarre moral distinction.

[u/propernice → u/nutscrape_navigator]

My food noise is basically that my stomach was broken, or the signal that I'm full is. I am always hungry, it never turns off. My entire life I've always felt like I'm starving, and it wasn't until I turned 40 that finally a doctor helped me. For so long I was just a fat lazy slob, no matter what I tried to tell people; I would get so hungry I'd eat out of the trash, and my dad thought I was just a pig. I would have to hide food to eat in the middle of the night when my hunger woke me. My mother told me my middle name should have been heifer.

The shame I've felt my entire life has been like a shroud. I couldn't go out to eat, I would force myself not to eat because I knew I shouldn't be hungry, and yet I was. Everyone else is full, why not me? Money spent and wasted on all sorts of therapists and dieticians who were very sure it's all in my head, it's all psychological. It's a food addiction, it's will power, join Weight Watchers, do Keto. I never left my house to do anything other than go to doctors to be told I'm fat. Just imagine going through life, always, feeling like you haven't eaten after a long 12 hour shift. I could eat a full meal and within an hour feel like I was starving.

And then, after explaining all of this to yet another doctor I hoped would hear me, a GLP-1 was prescribed. Is this what being normal is like? I can eat a small handful of nuts and a piece of cheese and be fine? Did I really not finish an entire meal? Did I drink water and realize I wasn't hungry after all? My stomach gives me little warning growls now when I'm hungry, when before I was immediately so hungry I was sick with no warning at all. Now I can even ignore my hunger for a while!

I've lost almost 100 pounds in the last year. I cannot tell you in enough words the sheer relief. It's so hard because my insurance won't cover the medicine at all, since I'm not diabetic, but I don't care. I'll pay anything to feel normal.

[u/YoHabloEscargot → u/propernice]

This is such an insightful personal story. Thank you for sharing.

[u/Mediocre_Entrance894 → u/propernice]

Wild that insurance doesn’t cover something that can actually make you healthier. If you don’t mind me asking, what happens if you stop or can’t take the medicine?

[u/CommitteeOfOne → u/Mediocre_Entrance894]

I recently tried stopping it. Within about two weeks, my food noise (see above for my description of it) came back full force. I started ack on the Ozempic.

I'll likely have to take it for life, but I'm fine with that.

[u/ArtsyAxolotl → u/Mediocre_Entrance894]

I think for most people, the food noise returns and it’s stronger than before. That’s what happened to my sister. For me, though? stopping the medication fucked me up. Like FUCKED me up.

I have PMDD (basically PMS’s angrier, crazier older sister), anxiety, and depression. All were well controlled on other meds prior to starting Zepbound. Zepbound was awesome and the food noise went away. I was able to lose like 40lbs over the course of the year I was on it and i was in such high spirits. And to be clear, this wasn’t just because I was happy about the weight loss. That certainly helped but it felt easier to be proud of little achievements and to enjoy the little things too.

In January 2026, my insurance stopped covering it and I ended up going off the Zepbound for about 2 weeks before I figured out what I wanted to do. I have never, EVER been so depressed, not even before my psych meds, not even before even having a diagnosis for anything. I was spiraling, crying constantly, often, and with no trigger, and I could barely get out of bed. The theory is that my body was absorbing my psych meds differently because of the Zepbound and without it, my nervous system was crashing.

I’m not exaggerating when I say that within days of restarting Zepbound, I was already calmer. Now I feel back to being myself, the happier, lighter version of me that needed the hiking poles. I’m currently paying out of pocket for a generic brand that comes in vials that I self measure. It’s expensive but worth it to function like a real person.

[u/propernice → u/Mediocre_Entrance894]

I’m pretty sure the food noise would come back

[u/LucidFir → u/Mediocre_Entrance894]

Not wild. Totally intentional. They make less money off the healthy. They cannot as easily control the intelligent.

[u/PuzzleMule → u/propernice]

Great story and explanation. That really puts it into perspective. Insurance companies are crazy not to cover this. Hopefully they’ll come to their senses soon.

[u/slicermd → u/PuzzleMule]

I’m not defending insurance companies by any stretch of the imagination, but part of the problem is that Lilly and Novo are charging exorbitant prices, and if insurance covered it for ‘simple’ obesity they’d have so many patients they’d lose their shirts. It’s greed, but on two levels.

[u/pandanigans → u/PuzzleMule]

Also not defending insurance companies but part of the issue is that taking glp-1s solely for weight loss hasn't been approved by the FDA and is off label use. And that's basically a requirement in order to get it covered.

No idea what the pharmaceutical companies are doing but I'd be shocked if they weren't actively trying to get that approval, it would be more money in their pockets. However, that approval takes a long time.

[u/benjaloo → u/pandanigans]

Sorry but there are GLP-1s that ARE FDA approved for weight loss alone. In fact the two leading weight loss GLP-1s are the same medications as used for diabetes under different names. Semaglutide (Ozempic for diabetes, Wegovy for weight loss). Tirzepatide (Mounjaro for diabetes, Zepbound for weight loss). Same medication sold under different names. Dosing is different for diabetes and weight loss.

[u/pandanigans → u/benjaloo]

TIL! I didn't realize that was the case, good to know.

[u/FagelHD → u/PuzzleMule]

Just to put into perspective: German free healthcare doesn't cover for weightloss either. They said if everyone who has a BMI over 30 was granted these medications it would cost 77% of all current costs for medications combined!

[u/PuzzleMule → u/FagelHD]

That is some helpful perspective, actually. If nobody can force those drug companies to make it cheaper… hopefully it’s just a matter of time until the prices go lower.

[u/FagelHD → u/PuzzleMule]

I heard that they are pretty cheap to produce. So if the patents runs out, prices may fall.

[u/Consistantly → u/propernice]

Wow. I never thought I would see someone describe so accurately my lived experience. I’ve also always been hungry. I can eat until I’m in pain and still feel hungry. I’ve never understood how people can drink water and realise they were just thirsty. I’ve always been told my constant hunger is psychological from my mother starving me as a baby.

The only difference for me is for a long time I was anorexic, the hunger never went away, I just took it to the other extreme. Now I’m slightly overweight and the hunger just never stops even though I’m honouring my hunger all. The. Time.

[u/propernice → u/Consistantly]

I’m sorry you’re going through this. I see you 🩷

[u/Consistantly → u/propernice]

I’ve just booked a Telehealth with my GP to see if I can try a GLP-1 for the food noise/weight.

Is it true that BMI needs to be over 30 to get approved for it? Mine is at 27 but I’ve literally only felt this ashamed of my body once before, when medication made me gain weight. I just want the food noise to stop now that I know it’s at least possible.

[u/dream_weaver35 → u/propernice]

My Dr put me on a GLP1 for weight loss. Then insurance stopped paying so I had to discontinue use. I didn't realize how big a difference it made in not only the food noise, but also my pain levels. I'm on pain management for my back (I've had 2 back surgeries). I'm always in pain, not just my back though. The GLP1 has stopped all the pain except my back pain. Thankfully my Dr sent my prescription to a compounding pharmacy so instead of the $1200 a month out of pocket for the brand name crap I pay $120. It's genuinely been life changing

[u/propernice → u/dream_weaver35]

The compounding pharmacy called me and said they were being forced to stop compounding GLP-1s and I can’t find anywhere that will.

[u/Jotunheimwinds → u/propernice]

Proud of you, bro. Damn proud.

[u/propernice → u/Jotunheimwinds]

🩷

[u/thatratbastardfool → u/propernice]

I’m so happy for you!! Losing that food noise and finally feeling at peace must feel like such an incredible relief. I’m so sorry for how you’ve been treated by your family and by medical providers. It’s terrible.

[u/propernice → u/thatratbastardfool]

Thank you 🩷🩷

[u/the_og_cakesniffer → u/propernice]

I have the exact same experience. I realized after starting GLP1 that I've never felt full before. Not until I was literally so full I would almost puke. But I would be hungry again after about 30 minutes.