Why we added Candida to Intestinal iQ™


FLUIDS iQ recently expanded our line of Intestinal iQ™ tests with the inclusion of Candida albicans as a testing option, either alone or in combination with others in our Intestinal iQ™ family of wellness tests.


But why Candida, you might ask?


As we know, Candida is a yeast naturally found in the gut. A healthy microbiome is able to keep opportunistic Candida in check. When the microbiome becomes dysbiotic, however, Candida can quickly spread throughout the body, leading to many issues, including increased intestinal permeability and inflammation1.


Many people go through life with intestinal permeability and chronic inflammation and never really understand what factors could be underlying these situations. They may develop Candida overgrowth, which can create very significant inflammatory spirals that, in turn, may contribute to damage in their joints, brain tissue, skin and other organ systems2.


A neglected or undetected infection with Candida albicans, as well as other pathogenic yeasts, have been linked to problems such as chronic fatigue3,autism4, multiple sclerosis5 and depression6. The use of antibiotics, oral contraceptives, chemotherapy, and anti-inflammatory steroids greatly increase susceptibility to Candida7.


Candida overgrowth produces toxins that can increase permeability in the intestinal lining. Moreover, with subsequent entry into the blood stream, Candida can cause an inflammatory immune system response7.


FLUIDS iQ’s new test for Candida includes the "Candida Suite" – testing for the three immunoglobulin to Candida albicans, namely IgM, IgG and IgA. We are also offering the IgG as an add on to any of our Intestinal iQ™ tests that include food sensitivities.


Testing for the Candida immunoglobulins identifies the immune provoking agents, a first step that will lead to their elimination from the diet. In turn, this reduces inflammation in the body and quiets down the hyperactive immune system. When combined with gut healing, the intestine is able to heal.


We added Candida to our growing line of Intestinal iQ™ analytical tests because we firmly believe it serves to broaden the portrait of intestinal status. 



1. Kumamoto, C. Inflammation and gastrointestinal Candida colonization.CurrOpinMicrobiol. 2011; 14: 386-391.

2. Galland, L. Nutrition and Candidiasis. J of Orthomolecular Psychiatry. 1983; 14: 50-60.

3. Stewart DE. Emotional Disorders Misdiagnosed as Physical Illness: Environmental Hypersensitivity, Candidiasis Hypersensitivity, and Chronic Fatigue Syndrome. International Journal of Mental Health. 1990; 19: 56-68.
4. Hughes HK and Ashwood P.Anti-Candida albicans IgG Antibodies in Children With Autism Spectrum Disorders. Frontiers in Psychiatry. 2018; 9: 1-5.
5. Benito-León J, Pisa D, Alonso R, Calleja P,Díaz-Sánchez M et al. Association between multiple sclerosis and Candida species: evidence from a case-control study. European Journal of Clinical Microbiology and Infectious Diseases. 2010; 29: 1139-1145.

6. Rucklidge JJ. Could yeast infections impair recovery from mental illness? A case study using micronutrients and olive leaf extract for the treatment of ADHD and depression. Adv Mind Body Med. 2013; 27: 14-18.

7. Miranda LN et al. Candida colonisation as a source for candidaemia. J Hosp Infect. 2009; 72: 9–16.

Intestinal iQ...now with Candida!


FLUIDS iQ is pleased to announce the expansion of our Intestinal iQ™ line of analytical wellness tests, with the addition of Candida albicans. This test is available to be ordered as an IgG add on to Intestinal iQ™ tests that include Food Sensitivities, or as a Candida Suite, measuring levels of IgG, IgM and IgA, which can be ordered by itself or in combination with any Intestinal iQ™ test. 

Intestinal iQ™ - The New Way to Assess Intestinal Status


FLUIDS iQ® recently launched our updated series of intestinal tests, featuring our triad of Zonulin, Diamine Oxidase\Histamine and Total IgG food sensitivity tests. We call it Intestinal iQ™ and it comes with an enhanced graphic layout of the results together with a detailed interpretation.


Why Intestinal iQ™?


FLUIDS iQ® is continually striving to provide wellness professionals with innovative and clinically useful tests. Our Zonulin test has been extremely well received, often being called a ‘game changer’ by those who use it. In combination with Total IgG for 24 or 88 foods it has proven to be an extremely useful screening tool of intestinal status. Ongoing research and clinical studies, together with numerous requests from the health care community, has led to our decision to add a third test to our series – the Diamine Oxidase (DAO) / Histamine test. 


Histamine is well known as one of the principle pro-inflammatory proteins, responsible for a myriad of allergic responses in the body, including increases in gastric acid secretion, intestinal inflammation and permeability. DAO is the main enzyme that breaks down histamine in the intestine and helps to maintain gastrointestinal balance.


Why Use Intestinal iQ™ tests?


Each of the tests in the Intestinal iQ™ series is useful in and of themselves. When combined, however, they paint a vivid portrait of an individual’s gut status that is unattainable when testing individual markers alone.
Zonulin, our test for “leaky gut”, is the foundational test in the Intestinal iQ™ series. Foods, nutrients, medications, alcohol, pesticides, toxins, viruses, bacteria, and fungus all come into intimate contact with the body through the gut. When the gut barrier becomes damaged by food allergens, chemicals, antibiotics, or infection, this important barrier function can be compromised, leading to increased intestinal permeability, or “leaky gut”.  


The Importance of testing the complete triad, by adding our DAO\H and Total IgG food sensitivity tests. 


Including an analysis of DAO/H enhances the portrait begun with the Zonulin screening test by assessing levels of allergic inflammation and the body’s ability to decrease inflammation in the gut. DAO and Histamine can tell if there are problems breaking down Histamine, or if there is inflammation causing allergic-type symptoms. If there are GI symptoms such as reflux, irritable bowel disease, chronic diarrhea, or food sensitivities, then this test profile helps in finding the underlying causes of these symptoms.


When Zonulin is used together with our DAO/H and Total IgG-24 or 88 foods panels, the combined profile gives a very clear and powerful portrait of the following:


1) The enzymatic and dysbiotic effects on GI function (Total IgG 24 or 88)
2) Inflammatory and permeability changes, both local and regional (DAO/H)
3) Intestinal permeability changes (Zonulin)