r.arbuthnot
TL1 Member · Oulu, FI
Newer member working through the reference pages before asking anything.
Joined 17 January 2025 · last posted 7d
25 posts, newest first. Showing up to 150.
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Revisiting: Can a home kit substitute for a laboratory report? A careful no Replied, post #54 · Analytics › Home & field testing · 21 Jul 2026 · 19 likes Post #51 and I disagree about the size of the effect, not about the direction. The most useful home practice is not a test at all: photograph the vial, the cake, the…
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[2026 update] Travelling with an injectable: documentation and practicalities Replied, post #80 · Access › International · 14 Jul 2026 · 9 likes The most useful thing anyone can add to a thin regional thread is what the official source says and where it is, rather than what happened to them. The claim is…
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Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #64 · Analytics › Impurities & related substances · 10 Jul 2026 · 20 likes The honest reading of a purity figure: it is an upper bound on how much of what the method could see was the intended species, under one integration convention, on one…
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Second pass at: Which categories are strict and which are relaxed, honestly Replied, post #83 · Start Here › Welcome · 28 Jun 2026 · 0 likes Asking as the newest person in the thread: is there a canonical order to read the documentation set in? I have been going alphabetically and that is clearly not it.
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Primary endpoint hierarchies and why order matters — one year on Replied, post #17 · Evidence › Trials · 16 Jun 2026 · 0 likes Understood. Thank you for being specific about the limits of it.
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GHRH analogues versus ghrelin mimetics: different mechanisms, conflated discussion Replied, post #18 · Compounds › Secretagogues & GH axis · 6 Jun 2026 · 27 likes Post #15 is right about the mechanism and I think understates the practical bit. Sermorelin and the growth hormone releasing hormone analogues depend on a functioning…
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Pinch or no pinch, and how needle length changes the answer — the long version Replied, post #65 · Practice › Administration · 27 May 2026 · 2 likes Pinch or no pinch: the decision depends on needle length and on your own anatomy. A longer needle (8 mm and up) reaches subcutaneous tissue easily without a pinch. A…
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Lipid changes during rapid weight loss: the expected trajectory Started this topic · Clinical › Bloodwork · 24 May 2026 · 0 likes Posting this under the heading it deserves: Lipid changes during rapid weight loss: the expected trajectory Everything below is what sits behind that. Lipid changes…
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Five questions in one post gets you one answer — how to split them Replied, post #49 · Start Here › How to Ask · 7 Apr 2026 · 31 likes Speaking as somebody who asked badly last month and got a polite request for four missing details: writing the question properly the first time takes ten minutes and…
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Contributing data without breaching anyone's privacy Replied, post #51 · Data & Tools › Datasets · 5 Mar 2026 · 12 likes How to contribute: if you have longitudinal data you want to add, the format is simple: date, measurement, context. Contact the maintainer of the specific dataset.
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Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #26 · Data & Tools › Datasets · 14 Feb 2026 · 11 likes Limitations of datasets: all community-collected data has limitations. The population is self-selected (people in this community are not representative of all people…
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Second pass at: Submitting a sample: the process end to end Replied, post #2 · marked as the solution · Sourcing › Independent verification · 8 Jan 2026 · 8 likes Source for the Submitting a sample figure, since it was asked for. It is in the discussion rather than the abstract, which is why the version circulating is stronger…
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Receptor desensitisation as a tolerance hypothesis, and its weak evidence — the long… Replied, post #2 · Pharmacology › Receptor biology · 4 Dec 2025 · 5 likes Endogenous versus pharmacological receptor engagement differ in magnitude and in duration by orders of magnitude. Arguments from "it is a natural hormone" do not…
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The most useful thing you learned here that was not the answer you came for — a second… Replied, post #114 · Lounge › Off topic · 22 Oct 2025 · 12 likes Lounge-level thought to close on: the measure of this place is that being wrong in public here is cheap. That is a design decision and it took work. I am aware this is…
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Journal club: the retatrutide phase 2 obesity paper Replied, post #4 · marked as the solution · Evidence › Journal club · 13 Jul 2025 · 32 likes Bringing the previous paper on the same question makes the session much better and doubles the preparation. Worth doing every third session rather than every one. I am…
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Coming back to: Lurking for two months before posting: was that the right call? Replied, post #4 · Start Here › Welcome · 18 Jun 2025 · 0 likes First week here. The thing I would tell someone arriving behind me is that the answers are slower and much better than anywhere else I have looked, and that trying to…
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Coming back to: Getting a referral rather than a refusal Replied, post #60 · Clinical › Prescriber conversations · 12 Jun 2025 · 14 likes My position on Getting a referral is current rather than settled. I have revised it once already and I expect to again, so treat it accordingly.
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Retatrutide dose escalation in the published trials Replied, post #91 · Compounds › Retatrutide · 5 Apr 2025 · 0 likes A theoretical mass for retatrutide is not published in the peer-reviewed literature in a form worth quoting. A report should state the mass observed on the instrument…
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Counter-ion form: the field almost nobody reports — one year on Replied, post #123 · Analytics › COA interpretation · 25 Mar 2025 · 0 likes Coming back to post #121, because the follow-up matters more than the original answer. The most useful thing anyone has posted about Counter-ion form in this category…
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Second pass at: Triple agonism: additive, synergistic, or neither? Replied, post #19 · Compounds › Retatrutide · 26 Feb 2025 · 0 likes One caution on Triple agonism: everything above assumes the underlying documentation is what it claims to be. That assumption is doing real work and is rarely stated.
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A 5 mg vial and a 0.25 mg dose: the arithmetic in full — what changed since Replied, post #21 · Practice › Reconstitution · 23 Feb 2025 · 21 likes No disagreement from me. Posting only so the question does not look ignored.
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Reading a supplementary appendix and finding the interesting part Replied, post #84 · Evidence › Trials · 4 Feb 2025 · 7 likes Building on post #81 rather than restating it. Absolute numbers, not just relative: a 30% relative reduction tells you the ratio but not the practical magnitude. The…
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Recovery when intake is low: what to cut first Replied, post #33 · Nutrition & Training › Resistance training · 11 Jan 2025 · 12 likes Intensity: using weights that allow 6 to 12 reps before fatigue is a reasonable range for preserving muscle. Heavier weights with lower reps can work but require more…
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US compounding rules and how they changed Replied, post #6 · Regional › North America · 29 Sep 2024 · 0 likes This follows post #3 rather than contradicting it. Say which country and which state or province. Regulatory position, availability and practical route can all differ…
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Circumference measurements as a poor man's composition estimate Replied, post #82 · Outcomes › Body composition · 20 Aug 2024 · 12 likes Changes during titration: measuring body composition during active titration is less useful than measuring after dose is stable. Titration causes fluid shifts that…