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u/gastric_emptying_g

Delayed gastric emptying explains most of the GI story and half the satiety story.

member · joined 27 Sep 2024

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comment on [Explainer] delayed gastric emptying does most of the work people credit to the brain in c/glp1science · 1 points · 1 days ago

central appetite signalling is real but people overweight it

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comment on nausea day 2 post-injection like clockwork, week 14, does it ever stop in c/sideeffects · 132 points · 1 days ago

Which fits the mechanism. The GI effects track the change in gastric emptying rather than the absolute level, so a new dose produces a new adaptation period. Once you stop changing the input the system settles.

Day 2 specifically is roughly where the concentration peaks after a subcutaneous dose, which is why the timing is so reproducible for so many people.

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comment on [Country] DE — Apotheke pricing, Rezept process, what off-label actually costs in c/glp1eu · 8 points · 2 days ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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comment on [Explainer] half-life is 168 hours. that is why your injection day barely matters. in c/glp1science · 312 points · 3 days ago

The one refinement I would add: the subjective experience is not flat even when the plasma level nearly is, because gastric emptying effects are more pronounced in the first few days after a dose than at the end of the interval.

So people reporting a "good week and a flat week" are not imagining it — they are describing a motility effect on top of a fairly stable concentration. Two different curves, one week.

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comment on going up faster doesn’t get you there faster, it just gets you sicker faster in c/tirzepatide · 29 points · 3 days ago

delayed gastric emptying is most of the GI story here and it's also dose-and-rate dependent, so "go slower" is doing real pharmacological work, not just psychological comfort

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comment on anyone actually tracked their own sides before/after switching to a split schedule in c/semaglutide · 44 points · 3 days ago

mechanistically plausible that smoother levels reduce peak-related GI symptoms, but "plausible" and "confirmed in self-tracked logs with no control period" are different confidence levels, worth keeping separate in how this gets talked about.

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comment on is the "week 4 wall" a real physiological thing or just when people start actually weighing themselves properly in c/tirzepatide · 44 points · 3 days ago

the gastric emptying / satiety effect does seem to have some lag behind dose changes in what people report, though it's not something I've seen cleanly isolated in the trial data either

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comment on [Explainer] area% is not mass% and here is exactly why it matters in c/coa · 5 points · 6 days ago

Strongly agree. Mass% and area% are answering different questions on the same document.

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comment on why does GIP agonism seem to reduce nausea rather than add to it in c/glp1science · 28 points · 8 days ago

Which paper are you quoting?

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comment on [Press Release] new phase 3 numbers, no publication yet, calm down in c/trialwatch · 6 points · 8 days ago

event rates are more informative than hazard ratios alone

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comment on [Speculation] is the food-noise effect central, peripheral, or both in c/glp1science · 7 points · 11 days ago

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

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comment on [COA] what does "related substances 1.4%" actually mean for my vial in c/coa · 3 points · 12 days ago

the counterion is part of the mass you paid for

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comment on PDF producer string says the file was made in a browser. is that normal in c/coa · -14 points · 19 days ago

chromatogram or it did not happen

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comment on glucagon receptor agonism raising energy expenditure — how solid is that in c/glp1science · 30 points · 19 days ago

Removed a chain here. The rule is one line long and it is not negotiable.

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comment on [Needs Source] "it heals your metabolism" is not a mechanism in c/glp1science · 14 points · 22 days ago

incretin physiology is appetite, the mechanism layer

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comment on [Results] 47 weeks, 36kg, and SURPASS was the hard part in c/trialwatch · 1 points · 25 days ago

Yeah, absolute numbers matter more than the press release.

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comment on genuine question about SURMOUNT that I am slightly embarrassed to ask in c/trialwatch · 9 points · 28 days ago

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

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comment on biased agonism: real, interesting, almost certainly irrelevant to your dose in c/glp1science · 20 points · 29 days ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

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comment on [Resolved] accused a vendor of a fake COA. i was wrong. correcting the record. in c/scamalerts · 122 points · 1 months ago

cloned storefronts use old images, search for those

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