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Evidence-based GLP-1 & peptide discussion since 2023
ForumsBuyer Beware⚠ 50+ FDA warning letters sent to peptide vendors in 2025 — November 2025 Page 4

⚠ 50+ FDA warning letters sent to peptide vendors in 2025 — November 2025

sarah_TO Fri, Aug 22, 2025 at 10:49 PM 43 replies 2,068 viewsPage 4 of 9
NurseLeah_Nash
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Sep 2024
Nashville, TN
Aug 23, 2025 at 4:29 AM#16

Just wanted to say — for anyone reading this 50+ FDA warning thread who is feeling discouraged: it gets better. The first few weeks are the hardest. Hang in there. 💪

13 14RegAffairsDC, BiostatsBrad, PeptideSynthNJ and 10 others
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LeilaHI
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Jan 2025
Honolulu, HI
Aug 23, 2025 at 4:46 AM#17

sarah_TO's experience with 50+ FDA warning letters resonates deeply with mine. I went through almost the identical process — starting dose, titration timeline, side effects, everything.

The main difference: I titrated faster. But the overall trajectory has been remarkably similar. Down 60 lbs in 5 months.

One thing I would add that sarah_TO did not mention: the relationship with food fundamentally changed.

35 11VendorMark, COA_Karl, MikeFit_NJ and 32 others
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LondonLisa
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Mar 2024
London, UK
Aug 23, 2025 at 5:03 AM#18

Saving this for reference. Quality thread.

13 4RetaRick_CA, JenPlateau, SallyK_inj and 10 others
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PharmHunterJen
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Jul 2024
Illinois
Aug 23, 2025 at 5:20 AM#19

As a healthcare provider, I want to add some clinical context to this discussion on 50+ FDA warning letters sent to peptide.

Building on what sarah_TO said — the evidence base here is well-established. The key publications to reference are from the SUSTAIN program[1].

Key clinical points:

  1. Efficacy is dose-dependent and typically requires 4-5 weeks to reach steady state
  2. Side effect profile is predictable and usually manageable with standard protocols
  3. Monitoring should include baseline labs and follow-up at 3-month intervals
  4. Patient education significantly improves outcomes and adherence

Standard disclaimer: this is educational, not individualized medical advice.

References:
[1] See thread title for relevant study identification.
Last edited: Aug 23, 2025 at 11:20 AM
28 1Dr.PainCLE, mike_mealprep, NicoleRaleigh and 25 others
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LibrarianMeg
Senior Member
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Mar 2024
Baltimore, MD
Aug 23, 2025 at 5:37 AM#20

Subscribing to this thread. 50+ FDA warning letters is exactly what I've been researching. 🙏

Last edited: Aug 23, 2025 at 7:37 AM
46 5TomFromTexas, mike.trainer_LA, sarah_nash92 and 43 others
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