Who Should Be Cautious

Can diabetics use gray-market GLP-1 peptides, and what should they watch for?

Type 2 diabetics can use GLP-1 agonists—they were originally developed for diabetes. However, using gray-market versions adds risks that are higher for diabetics: unknown exact potency means unpredictable blood sugar effects, and combining with insulin or sulfonylureas increases hypoglycemia risk. If you're diabetic, monitor blood glucose frequently (especially when starting or changing doses), know the signs of hypoglycemia, have fast-acting glucose available, and ideally work with a provider who can adjust your other diabetes medications as needed.