By Lew Kizer — 2026-10-17 — Health & Nutrition
The short answer
According to FDA inspection reports obtained by Bloomberg through a public-records request and reported October 15, 2026, inspectors found black mold on equipment and gross contamination at one Chinese plant making ingredients for compounded semaglutide and tirzepatide, and evidence of bogus documentation at a second. FDA placed both manufacturers on an import alert. FDA-approved GLP-1 medicines are made under separate, approved processes.
Key facts
- Reported Oct. 15, 2026 by Bloomberg from FDA inspection reports obtained under FOIA.
- One plant: black mold on equipment and gross contamination on floors.
- Second plant: evidence of falsified records; staff allegedly hid paperwork and poured out samples.
- Both manufacturers were placed on an FDA import alert.
- Earlier in 2026, FDA warned another Chinese supplier for relabeling semaglutide made at an unlisted site.
KINGSPORT, Tenn., Oct. 17, 2026 — Millions of Americans have turned to compounded versions of semaglutide and tirzepatide, often to save money. New inspection records raise questions about where some of those ingredients come from.
This article reports news and is not medical advice. Do not stop or change a medication without talking to your prescriber.
What inspectors found
Bloomberg obtained FDA inspection reports through a Freedom of Information Act request and reported on October 15 that inspectors found black mold on equipment and “gross contamination” on floors at a Chinese factory making ingredients for compounded weight-loss drugs. At a second Chinese plant, the reports describe evidence of bogus documentation, including staff who allegedly hid paperwork and poured out samples.
The FDA placed both manufacturers on an import alert, which allows shipments to be detained at the border. The published coverage did not name inspection dates.
Not the first warning this year
In May, BioSpace reported that FDA had warned Harbin Jixianglong Biotech after inspectors found it had bought semaglutide from a facility not cleared to ship to the U.S., relabeled it as its own, and exported it. FDA created a list of cleared GLP-1 ingredient facilities in September 2025 to tighten oversight. The company later recalled the ingredient.
Questions to ask if you use a compounded GLP-1
Ask your prescriber and pharmacy where the active ingredient is made, whether that supplier is registered with FDA, and how the finished product is tested. FDA's page on unapproved GLP-1 drugs explains the agency's concerns. Report side effects to your clinician.
The food side you control
Appetite drops on these medicines, which makes protein and nutrient-dense meals more important, not less. Our compounded GLP-1 meal guide and protein-first meals for smaller appetites explain how to choose.
“You don't have to figure out the macros. You don't have to wonder if the portions are right. We've already done that work. All you have to do is eat.” — Lew Kizer, Founder, SmashMeals
Commentary, not medical advice
The SmashMeals perspective
We are a kitchen, not a pharmacy, and medication decisions belong with your prescriber. What we can say is that the people we feed on GLP-1 medicines all describe the same thing: smaller appetites and a bigger need for every bite to count. Whatever medicine you take, protein-forward, portioned meals with posted nutrition are one thing you can control.
Frequently asked questions
Does this mean compounded semaglutide is unsafe?
The reports concern two specific ingredient makers that are now on an FDA import alert. They do not describe every compounded product. Ask your pharmacy where its active ingredient comes from and whether the supplier is registered with FDA.
What should I ask my compounding pharmacy?
Ask whether it is a state-licensed pharmacy or FDA-registered outsourcing facility, where the active ingredient is made, whether the supplier is registered with FDA, and how the product is tested. Report side effects to your prescriber and FDA MedWatch.
Are FDA-approved GLP-1 drugs affected?
The reports concern ingredients sold for compounding. FDA-approved brand-name GLP-1 medicines are made under their approved applications. Talk with your prescriber before switching or stopping any medicine.
Sources and credits
Follow the original sources for context and verification. A reference is not an endorsement of SmashMeals.
- FDA found black mold at Chinese weight loss drug ingredient plant (opens in a new tab)
Quartz (summarizing Bloomberg)
Why it matters: Summary of the inspection findings and import-alert status.
- Compound semaglutide, tirzepatide plants in China found with black mold by FDA (opens in a new tab)
Bloomberg
Why it matters: The original report based on FOIA documents.
- FDA sends warning letter after Chinese supplier breaks GLP-1 import restrictions (opens in a new tab)
BioSpace
Why it matters: Background on FDA's GLP-1 ingredient “green list” and an earlier case.
- FDA's concerns with unapproved GLP-1 drugs used for weight loss (opens in a new tab)
U.S. FDA
Why it matters: FDA's own guidance for patients considering compounded or unapproved products.