
Zonulin Family Protein Test
Mosaic Diagnostics
Sample type: Stool
Requires fasting: No
At home test
Details
Elevated fecal levels of a zonulin family protein (ZFP) have been associated with metabolic syndrome and obesity; conditions that have been linked to increased intestinal permeability (“leaky gut”). Elevated serum levels of the ZFP antigen have been correlated with results from the established lactulose mannitol test. Definitive research has yet to be published regarding a correlation between fecal ZFP levels and the results of the lactulose mannitol test.
- Zonulin
Estimated days for results: Results should arrive 10 business days after the lab receives samples.
10 business days
- Follow the test collection instructions here.
- DO NOT collect your sample while menstruating or actively bleeding from hemorrhoids.
- If you are taking antifungals or antibiotics, finish the course of medication, wait 3 days, and then collect your sample.
- Ship your samples Monday - Wednesday only.
48 Hours Before Collection
- Avoid the following foods and medications. DO NOT discontinue any prescription medications without first consulting your healthcare provider.
- Digestive enzymes
- Antacids
- Aspirin or other NSAIDs
24 Hours Before Collection
- DO NOT use suppositories or mineral oil before sample collection.
- If you have trouble producing stool, you may use one of the following:
- Oral phosphate soda laxatives (e.g., Fleet)
- Magnesium citrate
- Psyllium fiber
- Enemas using distilled water only
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island




