c/glp1science wiki

What this community is for

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.

c/glp1science was created on 27 Oct 2023 and currently has 49,800 members and 95 captured submissions. It sits in the second tier of the site, which mostly affects how fast a question gets answered rather than how well.

Rules, and why each exists

Community rules come first, then the six site-wide rules that apply everywhere on GLP Research Hub. Community rules are enforced by the moderators listed at the bottom of this page; site rules are enforced by everyone.

1. Cite the paper: journal, year, first author. Links optional, citation mandatory.
2. Mechanistic speculation is welcome if flaired as speculation.
3. No extrapolating rodent data to human dosing without saying that is what you are doing.

And the site rules, which are short on purpose:

1. Independent community. Nobody here sells anything, and anyone who tries is banned.
2. Not medical advice. Describe what you did; never prescribe to a stranger.
3. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
4. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
5. No contact handles, wallet addresses or tracking numbers — they identify people.
6. Be recognisably decent. Disagree hard, insult nobody.

Terms you will see

Vocabulary that turns up constantly in c/glp1science. Each links to the topic page, which collects every submission that touches it.

• pharmacology — discussed frequently in this community — see the topic page for every submission that touches it.
• incretin — discussed frequently in this community — see the topic page for every submission that touches it.
• receptor — discussed frequently in this community — see the topic page for every submission that touches it.
• gastric emptying — discussed frequently in this community — see the topic page for every submission that touches it.
• half-life — discussed frequently in this community — see the topic page for every submission that touches it.
• mechanism — discussed frequently in this community — see the topic page for every submission that touches it.
• appetite — discussed frequently in this community — see the topic page for every submission that touches it.

Start here

The twelve highest-scoring submissions in this community. Not necessarily the most correct — the most agreed-with, which is a different thing, and worth remembering when you read them.

1. Denmark: incretin, and what it actually costs here — 9.9k points, 32 comments, 2 years ago
2. my eGFR moved and I cannot work out whether mechanism is why — 6.7k points, 37 comments, 1 year ago
3. [Results] 66 weeks on 5mg, full numbers, ask me anything boring — 6.4k points, 64 comments, 1 year ago
4. [Results] 76 weeks on 2.5mg, full numbers, ask me anything boring — 4.9k points, 58 comments, 1 year ago
5. [Question] incretin — what am I missing here — 4.7k points, 61 comments, 2 years ago
6. tried appetite for 22 weeks. here is what happened. — 4.4k points, 57 comments, 2 years ago
7. reading receptor threads from 2024 and half of it aged badly — 4.4k points, 50 comments, 6 months ago
8. [Lab] 21th independent test on QSC, and the trend is the interesting part — 4.1k points, 30 comments, 2 years ago
9. [Results] 7 weeks, 26kg, and mechanism was the hard part — 4k points, 49 comments, 1 year ago
10. genuine question about receptor that I am slightly embarrassed to ask — 3.6k points, 27 comments, 2 years ago
11. tried half-life for 17 weeks. here is what happened. — 3.5k points, 63 comments, 1 year ago
12. what changed for me between week 95 and week 43 — 3.5k points, 56 comments, 2 years ago

Asked constantly

• someone explain receptor to me like I have not read a paper in years
• [Question] Ireland — has anyone got a straight answer on gastric emptying
• help me understand appetite, I have read the wiki twice
• help me understand incretin, I have read the wiki twice
• [Question] gastric emptying — what am I missing here
• unpopular opinion: gastric emptying is massively overrated
• switched from 0.25mg to 15mg and the constipation got better, not worse
• 21 months in and pharmacology is still the thing I get wrong
• [Question] Australia — has anyone got a straight answer on half-life
• [Results] 87 weeks, 25kg, and receptor was the hard part

If your question is on that list, read the answers there first. If it is not, ask it — that is what the community is for, and "this has been asked" is only a helpful reply when it comes with a link.

Who runs this

Moderation here is done by volunteers who also post as normal members. They are not clinicians, not vendors, and not paid.

• u/incretin_ivy — GIP/GLP-1 co-agonism is genuinely interesting pharmacology, separate from the weight story.
• u/trialwatch_theo — I read the supplementary appendix so you do not have to. Pre-registration or it is a hypothesis.
• u/gastric_emptying_g — Delayed gastric emptying explains most of the GI story and half the satiety story.
• u/sig_figs_sam — c/hplc mod. Analytical chemist by trade. Round your numbers responsibly.