About

  • Zonulin is a protein that is synthesized in intestinal cells and liver cells.
  • It is a key biomarker for intestinal permeability and is the only regulator of intestinal permeability that is reversible.
  • Zonulin is one of three ways the FIT test can diagnose a leaky gut, along with finding a sensitivity to Candida and Multiple Food Sensitivities.
  • It is estimated that anywhere between 50 and 100 percent of food intolerance sufferers have increased intestinal permeability.