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Evidence-based GLP-1 & peptide discussion since 2023
ForumsLab Results & BiomarkersOptimal lab testing frequency on GLP-1 — anyone have experience? Page 3

Optimal lab testing frequency on GLP-1 — anyone have experience?

RickReta_CO Fri, Jan 30, 2026 at 10:56 AM 17 replies 654 viewsPage 3 of 4
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Jan 30, 2026 at 3:11 PM#11

Moderator note: Reminder: nothing posted here constitutes medical advice. Consult your healthcare provider.

Tagging this for the weekly digest. 👍

26 14PedsEndoPhilly, SleepDoc_PDX, RegAffairsDC and 23 others
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Dr.ObesityLA
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Jan 30, 2026 at 3:28 PM#12

Slightly tangential to Optimal lab testing but anders_CPH 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.

49 2KarenAZ_mom, zoe_NC, Dr.ObesityLA and 46 others
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bri_stats
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Jan 30, 2026 at 3:45 PM#13
mona_PHX said:
Follow-up question: how long did you wait before increasing your dose

This is exactly right. mona_PHX articulated what I have been trying to explain to my doctor for months. The Optimal lab testing aspect is the most important factor.

18 6TomFromTexas, mike.trainer_LA, sarah_nash92 and 15 others
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Dr.SleepRoch
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Jan 30, 2026 at 4:02 PM#14

Saving this for reference. Top-tier content.

Last edited: Jan 30, 2026 at 8:02 PM
3 1tony_orlando, Dr.NephBHM_UK, kim_atl_prep
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NicoleRaleigh
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Jan 30, 2026 at 4:19 PM#15

Adding my data to this Optimal lab testing discussion:

MetricBaselineMonth 4Month 8
Weight242 lbs237 lbs217 lbs
A1C6.6%6.2%5.4%
hsCRP6.03.00.8

Protocol: Tirzepatide 15mg/wk, resistance training 3x/wk, protein 1.4g/kg/day.

2 17mike_nyc, VendorMark
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