FDA: Omnipod pod lots may under-deliver insulin—check lot & DKA signs

FDA says certain Omnipod pod lots may under-deliver insulin because of a manufacturing issue. The practical next step is to check your pod lot number now using the FDA post’s lot-check instructions. If your lot is included, discontinue use of those pods and replace them with pods from unaffected lots.

When insulin delivery is lower than intended, blood glucose can rise and, in severe cases, can lead to diabetic ketoacidosis (DKA)—a medical emergency. That’s why this article also explains DKA warning signs and when to seek emergency care.

What FDA posted (May 26, 2026) and what’s known

On May 26, 2026, FDA posted a voluntary medical device correction from Insulet for specific lots of Omnipod 5, Omnipod DASH, and Omnipod Insulin Management System (Omnipod Eros) pods. FDA states the manufacturing issue could result in insulin under-delivery.

FDA says some affected pods may have a small tear in tubing (cannula) just above the skin area—between the pod and where the cannula enters the body. If that happens, FDA says insulin may leak outside the pod instead of being fully delivered, which can lead to under-delivery.

FDA also notes that some users may notice wetness on the skin or pod adhesive or detect the smell of insulin. But in some cases, FDA says the issue may be difficult to detect and could go unnoticed.

Important: FDA states pods not included in the affected lots remain safe to use. FDA also says this issue does not affect continuous glucose monitoring (CGM) systems or CGM readings.

How to check whether your pod lot is affected

FDA’s instructions are to confirm your pod lot number using the “Check Pod Lot” link on the FDA post.

Find your pod lot number (it’s printed on the pod and/or packaging).
Go to the FDA post and use the Check Pod Lot link.
Enter your lot number to see whether it appears in the affected-lot list.

Key point: because FDA says the problem can be hard to detect, your lot number is the most reliable way to check.

If your lot is included: a simple replacement checklist

If you have a pod from an affected lot in use, FDA says you should discontinue use and replace it with a pod from an unaffected lot. Insulet provides replacement pods at no cost for affected customers.

Stop using the affected pod (replace immediately).
Get a replacement pod from an unaffected lot using the replacement process on the FDA-linked page.
Contact Insulet Product Support if you need help (U.S. support: 1-800-641-2049, available 24/7).
Follow your diabetes device instructions for proper insertion/replacement with the new pod.
Monitor glucose after switching pods. If glucose stays high or you feel unwell, consider checking ketones and contact your diabetes care team per your plan.

Why you can’t rely on symptoms or alarms alone

If insulin delivery is reduced, the first sign may be high blood glucose. FDA notes the manufacturing issue may be difficult to detect, so the absence of a visible problem or a pump alert does not confirm that insulin delivery is adequate.

That’s why DKA prevention is centered on early detection—especially checking ketones when glucose is high or you are sick.

DKA warning signs to know (and when to escalate)

DKA is a medical emergency. CDC and the American Diabetes Association both emphasize prompt action when ketones are elevated and/or symptoms suggest DKA.

Check ketones if you’re sick or your blood sugar is 250 mg/dL or above (CDC).
Go to the ER or call 911 right away if blood sugar stays at 300 mg/dL or above, your breath smells fruity, you’re vomiting and can’t keep fluids down, you have trouble breathing, or you have multiple signs and symptoms of DKA (CDC).
The ADA says: if your blood ketone level is 1.6 mmol/L or higher, seek emergency medical care immediately.

Common DKA symptoms can include nausea/vomiting, abdominal pain, rapid or heavy breathing, extreme fatigue, and a fruity odor.

What remains uncertain (but what’s actionable today)

Known: FDA describes a specific manufacturing issue in certain pod lots that may lead to insulin under-delivery.
Known: Not all users with affected lots will necessarily experience under-delivery; FDA says the issue may be difficult to detect.
Not fully knowable in advance: The alert doesn’t mean every affected person will have the same glucose pattern or symptoms—so checking your lot number and having a DKA action plan matters.

Reasonable next steps for everyday life

Check your pod lot number using the FDA-linked lot-check tool.
If included, replace immediately with a pod from an unaffected lot and request replacements at no cost through the FDA/Insulet process.
Keep ketone testing supplies available and know your family/caregiver escalation plan (especially during illness or if glucose remains high).
If you meet CDC/ADA emergency triggers (very high glucose and/or ketones, vomiting, trouble breathing, fruity breath, or multiple DKA symptoms), seek emergency care right away.

If you have questions about your specific diabetes routine, contact your diabetes care team. For device-correction steps (lot checks and replacements), FDA’s posting and Insulet’s instructions are the most directly relevant guidance.

Key sources

Editorial note: Weence articles are researched from cited public-health, medical, regulatory, journal, and reputable news sources and may be drafted with AI assistance. They are checked for source support, clarity, and safety guardrails before publication.

This article is for general informational purposes only and is not medical advice. Research findings can be early or incomplete, and health guidance can change. Always talk with a qualified healthcare professional about personal symptoms, diagnosis, medications, vaccines, screenings, or treatment decisions. If you think you may have a medical emergency, call emergency services right away.