5d (edited) • Peptide Tips
"My RS GLP1 Dose Isn't Working Anymore" — Here's What's Actually Happening
For research and educational purposes only. Not medical advice.
I get this question all the time:
"My current dose of tirzepatide/retatrutide isn't doing anything. Zero appetite suppression. It's just not working."
I hear you. But here's the truth — it's still working. Your body has just adapted to it.
Let me explain what's going on and what to do about it.
What's Actually Happening Inside Your Body
Your GLP-1 receptors have become desensitized to your current dose.
Think of it like this: When you first walk into a room with a candle burning, the smell is strong. An hour later? You don't notice it anymore. The candle didn't stop producing scent — your nose just adapted.
The same thing happens with GLP-1 receptors.
Here's the science in simple terms:
1. Receptor Internalization Your receptors get "tired" from constant activation. They temporarily retreat inside the cell to take a break, leaving fewer available on the surface.
2. Downregulation With ongoing exposure, your body may reduce the total number of receptors it produces. Fewer receptors = less response to the same dose.
3. New Baseline Your brain recalibrates. What used to feel like dramatic appetite suppression now feels... normal. That's because your body built this support into its new "default setting."
Trust Me — It's Still Helping
Here's the part people miss:
You've forgotten what no support feels like.
The compound is still suppressing your appetite and quieting food noise. You just can't feel it anymore because it's become your new normal.
If you stopped cold turkey? You'd find out real quick what zero appetite suppression actually means.
And if you've ever dieted naturally before, you know the rebound effect is brutal. Your hunger doesn't just come back — it often comes back stronger because all those signals that were being suppressed suddenly flood back in.
Before You Increase Your Dose — Read This First
When people tell me their dose "isn't working," my first question isn't about the dose.
It's about the diet.
Ask yourself these questions honestly:
Are you eating real, whole foods?
Or have you gotten lazy with protein shakes, snacks, and convenient processed stuff?
GLP-1 agonists work with the satiety signals from real food. If you're not eating satiating meals, the compound has to do all the heavy lifting — and that's not sustainable.
Where's your fiber?
Fruits and vegetables aren't optional. Fiber creates physical fullness in your stomach and feeds gut bacteria that produce their own satiety signals.
No fiber = relying 100% on the peptide for fullness.
Are you getting enough protein from actual food?
Protein shakes are fine as a supplement. But whole food protein (chicken, beef, fish, eggs) triggers satiety signals that liquids don't.
Are you hydrated?
Dehydration feels like hunger. Seriously. Drink your water.
Fix these things first. You might be surprised how much better your current dose works when your diet is supporting it instead of fighting against it.
Okay, My Diet Is Solid — Now What?
If you've genuinely dialed in your nutrition and you're still experiencing breakthrough hunger, then we can talk about a dose adjustment.
But here's the key:
You Don't Have to Double Your Dose
Small bumps work. We're talking 1-2mg increases.
Why? Because these compounds build up in your system over time. The effects compound over about 4 weeks. You don't need to make huge jumps every time you feel some adaptation.
Small adjustment → Wait 4 weeks → Reassess
This approach helps you find your minimum effective dose instead of overshooting and dealing with unnecessary side effects (or burning through your supply faster than needed).
Quick Summary
  1. Your dose is still working — your receptors just adapted and you have a new baseline
  2. Stopping would show you the difference — the rebound is real
  3. Check your diet first — whole foods, fiber, protein, water
  4. If diet is solid, small dose increases work — 1-2mg, not doubling
  5. Wait 4 weeks between changes — effects compound over time
The goal isn't chasing that initial dramatic effect forever. It's building a sustainable protocol that supports your research long-term.
Anyone else been through this with their research? What worked for you? Drop it in the comments 👇
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Derek Pruski
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"My RS GLP1 Dose Isn't Working Anymore" — Here's What's Actually Happening
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