Nutrition for IBS, Reflux and Bloated Stomach Relief

Intestinal Permeability or Leaky Gut Test

This is a urine test for assessing increased intestinal permeability, also known as ‘Leaky Gut Test” or impaired absorption, or ‘malabsorption’.

Increased intestinal permeability or ‘leaky gut’ is not a diagnosis. It is a mechanism by which toxins or partially digested foods (that would not otherwise get into the blood stream) pass from the digestive tract into the body. Approximately 60% of the body’s immune cell population is located underneath the gut lining, so pathogenic bacteria, yeasts or parasites, as well as partially digested foods can interact with these cells and cause food intolerance, inflammation or immune imbalance. Leaky gut not only causes digestive discomfort, it can trigger:

  • Multiple food allergies or food sensitivities
  • Chronic infections or autoimmunity
  • Swollen, painful joints
  • Fatigue
  • Brain fog
  • Skin eruptions and rashes

Leaky gut is often a sign of inflammation in the gut that may be caused by:

Test procedure: A drink containing a mixture of different sized molecules is taken. The different sizes of molecules pass through the gut wall and into the circulation with differing levels of ease. All the urine passed over the next six hours is collected. The quantity of each molecular size of PEG in the urine collection are measured and we can then reconstruct an absorption profile.