Different Testing Methods – Breath v Hair v Blood

For many people suffering with symptoms of food intolerances, the search for a solution leads to the exploration of a variety of tests. Here we look at a few different methods and how they work.

Hair test

Several companies offer testing on samples of hair, being a non invasive alternative to blood testing.  Hair testing is excellent for determining vitamin and mineral deficiency, and heavy metal toxicity, however the hair sample is easily affected by by hair dyes, shampoos and hair products and is therefore probably not the most reliable way to test for food intolerances.

Breath test

A hydrogen breath test is often used as a diagnostic tool for people with irritable bowel syndrome to determine whether lactose intolerance or fructose malabsorption is present.  These kinds of issues are related to sugars and occur when there is an enzyme deficiency in the body.  While the breath test is the only way to detect lactose or fructose intolerance, it does not cover IgG Food Intolerance.  If a breath test has been conducted, and lactose or fructose issues ruled out, you might like to then look into IgG Food Intolerance Testing to determine if an IgG intolerance exists.

Blood test

A blood test would be one of the more common ways to test for food intolerance or allergy, but there are many different blood tests available – some more accurate than others.

ImuPro tests on blood serum which is stable and completely reproducible.  Other blood testing methods including blood spot, whole blood, or cytotoxic testing, can be unreliable due to morphological changes taking place within the sample if it is not tested within a certain time-frame.