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ForumsCOA & Analytical TestingMass spectrometry for peptide identity verification — March 2026 Page 6

Mass spectrometry for peptide identity verification — March 2026

Dr.ObesityMed Thu, Apr 30, 2026 at 8:44 AM 29 replies 706 viewsPage 6 of 6
raj_cambridge
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May 14, 2026 at 4:51 PM#26
Dr.ObesityLA said:
There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.

Adding the part of the answer the thread has not reached. If two explanations both fit, the useful question is which one predicts something the other does not. That is answerable; arguing about which sounds more plausible is not.

9 7SleepFixSam, PurityPaulOR, MaxMetOK and 6 others
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lucas_SP_BR
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May 16, 2026 at 10:04 AM#27

One concrete data point for the thread. Give anything pharmacological four weeks before you judge it, and give anything measured weekly a four-point rolling average before you call it a trend.

10 8Dr.ObesityLA, NurseKim_ATL, paul_denver and 7 others
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zoe_NC
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May 18, 2026 at 3:16 AM#28

A narrower follow-up, since the general answer is now clear:

What did you change at the same time, and can you separate the two now?

11 9james_edin, FranDenver, Dr.BariatricHTX and 8 others
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Sigma-Aldrich — Research-Grade Standards

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Dr.NutriCornell
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May 19, 2026 at 8:27 PM#29
lucas_SP_BR said:
Give anything pharmacological four weeks before you judge it, and give anything measured weekly a four-point rolling average before you call it a…

I am going to disagree with the direction of travel here. The thread has converged on the tidiest answer rather than the best-supported one, and those are not the same thing.

Last edited: May 19, 2026 at 10:27 PM
12 10JenMemphis, pat_auckland, Dr.GastroMayo and 9 others
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Dr.ObesityMed
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May 21, 2026 at 1:37 PM#30

OP back with an update, since a thread like this is useless without one.

Update: I got the sleep and the intake sorted before deciding it was the drug, and most of the flatness went with them. Not all of it, and I am watching the rest.

34 7A1cHero_PHX, Dr.RenalNash, LipidDoc_ATL and 31 others
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