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c/glp1science·posted 2 months ago by u/elin_lundgren

genuine question about incretin that I am slightly embarrassed to ask

Speculation The Quiet One ×2

Been lurking in c/researchpeptides for about 13 months and finally have something worth posting.

Short version: week 48, 5mg, and gastric emptying is the bit I still cannot get a straight answer on. I have read the wiki, I have read the last 13 threads, and the answers split roughly down the middle.

What I actually want to know is whether the people saying it does not matter have measured it, or whether it is just repeated confidently. Happy to be told I am overthinking this — I probably am — but I would rather overthink it now than at week 42.

1,027 up / 215 down83% upvoted40 commentsid xy16zf12 May 2026

40 comments

28 in this archive, depth 4

best — the order this archive was captured in

u/gastric_emptying_gMOD130 points·2 months ago

Flair changed to match the content. Read the sidebar before posting next time and we are square.

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u/tomas_broberg107 points·2 months ago

This is correct. Rodent data is investigational, not predictive.

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u/elin_lundgrenOP-14 points·2 months ago

This is correct.

Yes, exactly this, and it is the bit that took me 48 weeks to accept.

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[removed]1 point·2 months ago

[removed by moderator]

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u/bilal_osei51 points·2 months ago

glucagon-receptor contribution is pharmacology for dual and triple agonism

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u/laila_almeida102 points·2 months ago

Not convinced. The evidence does not support that reading.

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u/plain_titration25 points·2 months ago

receptor distribution matters, GLP-1 is not everywhere

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u/rina_bergstrom115 points·2 months ago

Where does the incretin data actually come from?

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u/elin_lundgrenOP85 points·2 months ago

the 17-day half-life means week 17 is still ramp-up pharmacokinetically

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u/asks_dumb_questions58 points·2 months ago

rodent incretin tells you what to investigate, not what to expect in humans

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u/ingrid_correia34 points·2 months ago

Strongly agree. Central appetite is real but people overstate it.

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u/flair_enthusiast20 points·2 months ago

receptor distribution matters, GLP-1 is not everywhere

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u/ilias_kaufmann26 points·2 months ago

Strongly agree.

Adding to this: half-life is doing more work than the comment implies.

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u/elodie_grimaldi32 points·2 months ago

the 24-day half-life means week 24 is still ramp-up pharmacokinetically

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u/sig_figs_sammod · analytical90 points·2 months ago

Stomach physiology changed when I moved up to 12.5mg. Gastric emptying lag is the whole story.

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u/georgi_chowdhury29 points·2 months ago

gastric emptying is real and explains most early injection-site soreness

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u/titration_marshalmod · c/semaglutide15 points·2 months ago

do not extrapolate rodent data to human dosing without saying so

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u/ingrid_correia42 points·2 months ago

Yeah, the incretin mechanism is doing the work here.

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u/hedda_adeyemi25 points·2 months ago

Which paper are you quoting?

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u/lurker_for_years20 points·2 months ago·edited

the half-life is appetite, affects steady state timing

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u/elin_lundgrenOP11 points·2 months ago

do not extrapolate rodent data to human dosing without saying so

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u/gustav_vermeulen19 points·2 months ago

The confident tone is doing a lot of work that the evidence is not.

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u/noor_hovland29 points·2 months ago

Rodent, human, or in vitro?

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u/kavya_kravchenko0 points·2 months ago

central appetite signalling is real but people overweight it

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About c/glp1science

The mechanism layer: incretin physiology, receptor distribution, gastric emptying, central appetite signalling, glucagon-receptor contribution, amylin co-agonism, and the pharmacokinetics that make weekly dosing possible. Papers get cited by journal and year or they get a [needs source] reply.

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