Tests for elevated intestinal permeability, also known as leaky gut.

A kit for blood collection will be mailed to your home address, which you must take with you to Alpha Labs or In-Common Laboratories for collection.

Refrain from taking non-essential medications and dietary supplements (especially biotin) for 72 hours before the specimen collection.

See test details here: https://www.doctorsdata.com/Zonulin-Family-Protein-serum