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ForumsCOA & Analytical TestingInter-lab variability in peptide testing — July 2024 Page 9

Inter-lab variability in peptide testing — July 2024

Dr.GastroMayo Tue, Jun 24, 2025 at 1:04 AM 41 replies 1,493 viewsPage 9 of 9
Dr.BariatricHTX
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Houston, TX
Jun 24, 2025 at 1:49 PM#41

Bookmarked 📌 The Inter-lab variabilit info in this thread is essential. Coming back to this for sure.

Last edited: Jun 24, 2025 at 7:49 PM
4 24CarlaRPh_TPA, steph_laguna, fiona_glasgow and 1 other
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pete_RVA
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Dec 2024
Richmond, VA
Jun 24, 2025 at 2:06 PM#42

Slightly tangential to Inter-lab variability in but denise_HTX reminded me — does anyone have experience combining this with metformin?

I know it is not exactly on-topic but it seems related enough to ask here rather than starting a new thread. Apologies if this has been covered — I did search first.

Last edited: Jun 24, 2025 at 7:06 PM
38 10Dr.Martinez, mike_mod, SarahChen_PharmD and 35 others
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lucas_SP_BR
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Jun 2024
São Paulo, BR
Jun 24, 2025 at 2:23 PM#43

Adding my data to this Inter-lab variability in discussion:

MetricBaselineMonth 4Month 6
Weight260 lbs215 lbs205 lbs
A1C6.4%6.2%5.2%
hsCRP4.03.01.0

Protocol: Tirzepatide 15mg/wk, resistance training 3x/wk, protein 1.2g/kg/day.

Last edited: Jun 24, 2025 at 4:23 PM
10 5zoe_NC, Dr.ObesityLA, NurseKim_ATL and 7 others
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KevinCompounds
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Dec 2023
Nevada
Jun 24, 2025 at 2:40 PM#44

Reading this thread on Inter-lab variability in hits close to home. Night shift nurse — I started at 271 lbs and felt like I would tried everything.

7 months on tirz and I am a different person. Not just the 46 lbs lost — my energy, my mood, my relationship with food. All transformed.

If you are on the fence about Inter-lab variabilit — take the leap. It was the best health decision I have ever made. ❤️

33 22BenResearch_OR, MikeKY_noInsulin, Dr.RaviCardio and 30 others
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labquiet_amy
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Mar 2024
Cambridge, MA
Jun 24, 2025 at 2:57 PM#45

Adding my data to this Inter-lab variability in discussion:

MetricBaselineMonth 3Month 8
Weight242 lbs242 lbs207 lbs
A1C6.6%5.8%5.4%
hsCRP6.02.00.8

Protocol: Semaglutide 2.4mg/wk, resistance training 3x/wk, protein 1.4g/kg/day.

8 24pete_manc_UK, anna.melb_AU, mark_tokyo and 5 others
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