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Peptides beyond GLP-1

Why animal data is not a small version of human data

Started 4 December 2024 · 23 replies · 285 hearts · read 4.7k times

AbramAmsterdam, NL · 4 December 2024
1.6 years ago

A question rather than an update: Why animal data is not a small version of human data

Evidence question. I would rather have an honest "we do not know" than a confident answer.

I have been trying to trace a claim back to its source and every trail ends at a summary of a summary, which is itself informative.

Everything discussed in this circle is research-use-only material and is not approved for use in a person, and my question is about the evidence rather than about use.

I have read the guides on this site on this subject and they were clearer than anything else I found, and my question sits just past where they stop.

Thanks. I would genuinely rather be told nobody knows than be given a confident answer.

95

TamarPlymouth, UK
#1

I would say if you cannot find a published human study, that is itself the finding rather than a gap to fill with reasoning.

14

SunilFacilitatorBirmingham, UK
#2

Speaking as a facilitator: we do not name individuals in this circle and we do not accuse anybody of anything. We describe what a document does and does not show.

24

NevGrimsby, UK
#3

Grateful you posted rather than kept it to yourself.

13

PolaGdańsk, PL
#4

Gently disagreeing with Tamar, or rather adding the other half of it.

The dosing discussion in most places online is derived from animal work by arithmetic, and that arithmetic does not do what people think it does.

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TobinCork, IE
#5

My approach now is to ask what would have to be true for a claim to hold, and then to look for whether anybody has checked.

6

WellsChester, UK
#6

What surprised me was how much of what circulates traces back to a single small study repeated in a hundred summaries.

14

MableBolton, UK
#7

What Wells described happened to me too, in a slightly different order.

The most valuable thread in this circle was one where three people said clearly that they had stopped taking something and why.

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TacitaRome, IT
#8

Something practical: I keep a note of what I have actually read on each of these, because otherwise I mistake familiarity for knowledge.

14

IdrisCardiff, UK
#9

What helped me was asking, for each compound, what the best single piece of human evidence actually is. Often the answer is very little.

14

IvorLlanelli, UK
#10

Coming back to what Tacita wrote further up, because it is the bit I keep thinking about.

Something I have noticed is that the confidence of the discussion is usually inversely proportional to the amount of evidence.

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FabianBasel, CH
#11

Nothing useful, just that I have been exactly here.

8

BunnyWeston-super-Mare, UK
#12

What Idris described happened to me too, in a slightly different order.

I would say be very careful with anything where the entire published record is animal work. That is a starting point, not a finding.

10

FlossieShrewsbury, UK
#13

What I keep coming back to is that a compound having a plausible mechanism and a compound having human outcome data are very different situations.

9

AbramAmsterdam, NL
#14

Everything discussed here is research-use-only material. That is not a formality: it was never manufactured, released or documented for use in a person.

12

TamarPlymouth, UK
#15

My position is that I read about these with interest and I do not take them, and I want that to be a legitimate position in this circle.

12

MorayElgin, UK
#16

The reading group format works well for this. We took one compound, found everything published, and concluded it was thinner than the discussion suggested.

15

NevGrimsby, UK
#17

Picking up Moray’s point rather than starting a new one.

Something worth knowing: a compound being widely discussed tells you about the discussion rather than about the compound.

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PolaGdańsk, PL
#18

I found that separating the mechanism claims from the outcome claims made the whole subject much easier to think about.

13

TobinCork, IE
#19

Coming back to what Nev wrote further up, because it is the bit I keep thinking about.

The interaction question is almost entirely unstudied for most of this, and that is worth stating on every thread.

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WellsChester, UK
#20

I would gently push back on any post that presents a protocol as established. Almost none of them are.

15

MableBolton, UK
#21

Nothing in this circle is medical advice and none of us is in a position to tell you what is safe for you.

14

SunilFacilitatorBirmingham, UK
#22

When somebody in a thread like this changes their mind in public, having actually gone and read the thing, I would like it noticed rather than passed over. It is rare and it costs something to do.

15

IdrisCardiff, UK
#23

Wells has already said most of this and I want to add the one part that was different for me.

What I would flag is that the safety data is the part that is thinnest, and it is the part that matters most.

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