Zonulin in blood
Zonulin RP from serum.
Zonulin is a protein that is active in the intestines. Elevated zonulin levels in the blood or in the faeces indicate an increased permeability of the intestinal wall as a result of e.g. exposure to too much gluten or harmful bacteria. Too much zonulin is an indicator for Leaky Gut Syndrome.
You can also have this determination done from stool samples.