TestUrGut: Intestinal microbiota test

In the intestines live more than one hundred billion bacteria that have key functions to maintain good health. However, when their balance is altered, a phenomenon known as intestinal dysbiosis, discomfort and multiple diseases can be triggered. Knowing which bacteria are affected by lifestyle or a health problem can help prevent and improve your bowel health.

Thanks to more than 20 years of research, from GoodGut we have developed a non-invasive test that is based on the analysis of the intestinal microbiota to detail its condition and identify a possible dysbiosis.

Who is TestUrGut aimed at?

Anyone with an interest in preventing and improving their health.
The test can be done without the need for any intestinal disorders. Knowing the general state of the microbiota can help strengthen it and prevent possible diseases.

If you have any of these symptoms, your body may be warning you of an imbalance in your microbiota:

Digestive disorders

such as constipation, flatulence, heavy digestion and bloating.

Muscle aches ​

such as pain, muscle weakness, stings and severe fatigue for no apparent reason.

Skin disorders ​

such as skin irritation, itching or acne.

Psychological effects

such as depression, asthenia, anxiety, insomnia.

TestUrGut will be able to help detect alterations in the intestinal microbiota, establish a diagnosis and take appropriate measures to correct possible intestinal imbalance and improve your well-being.

Intestinal dysbiosis is associated with alterations in our health

TestUrGut offers a broad view of the most relevant microorganisms, in terms of composition and functionality. The analyzed markers represent the different aspects of the microbiota such as the degree of balance, the immunoprotective capacity and the state of inflammation, allowing to detect alterations of the intestinal mucosa.

The microbial DNA in your sample will be analyzed in our laboratory using more than one hundred quantitative PCR reactions. The abundance of your microorganisms is weighted with guide values defined and validated through clinical studies with a healthy reference population, so the microbiota profile obtained can be related to the state of health.

Interpretation of results

In just 2 weeks of receiving the sample, you will receive the results report by email. Here is an example.

We know that access to an expert healthcare professional can help you get the most out of TestUrGut and interpret the results appropriately.

In addition, it is important that you be able to evaluate your case well in advance so that we can offer you the appropriate advice on the day of the visit.

In the Find your specialist section you can see which professionals already know our test. A nutritionist can help you by providing dietary recommendations to improve your eating habits or establish a therapeutic regimen in case you have any health problems. On the other hand, a digestologist will be able to offer you a diagnosis, or indicate the additional tests needed to determine the problem and schedule a therapeutic treatment if necessary.

Alternatively, you can refer us to a specialist you trust, and we will provide you with the training you need to know how to interpret the results report.

You can choose between 3 modalities:

TestUrGut pack


Test for the prevention and improvement of intestinal health. It does not include the visit, but you can tell us which professional you will visit. You can choose a specialist from the specialist board or choose one you trust, and we will send you the results report.


*IVA included. Shipment cost not included

Nutritionist pack

Test for the prevention and improvement of intestinal health and online visit with a nutritionist from the specialist team. In this case, we coordinate the visit.


*IVA included. Shipment cost not included

Digestologist pack

Test for the prevention and improvement of intestinal health and online visit with a specialist digestologist. In this case, we coordinate the visit.


*IVA included. Shipment cost not included

How it works?

1. Sample collection

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You will receive the sample collection kit at your home. Inside you will find the analysis form and instructions for taking the sample.

2. Sample shipment

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Prepare the package with the completed form and sample. Call 972 17 00 14 so that the free transport service can pick you up within 24 hours.

3. Sample analysis

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Upon receipt of the sample, it is processed and analyzed in our laboratory using the quantitative PCR technique, under a quality system certified by ISO13485: 2016 for medical devices.

4. Results report

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We will send you the results report within 2 weeks to the email address provided on the analysis form.

5. Interpretation of the report

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A proper interpretation of the final report requires a healthcare professional. You can tell the specialist to whom the results report will be sent. In addition, if you have chosen the pack with online visit, we will coordinate the visit.

Warnings and Contraindications

  • Not suitable for minors
  • Not suitable for pregnant women
  • Not suitable for people with Crohn’s Disease / Ulcerative Colitis
  • It is not recommended to take the test during menstruation

The previous month cannot be:

  • Taken antibiotic
  • Underwent colonoscopy


  • Storage at room temperature
  • The sample must be sent within 48 hours from the collection of the sample

Secondary effects

  • Never

This product complies with the regulations of In Vitro Diagnostic Health Products

For any adult, except pregnant, with intestinal affectations or not, who are interested in knowing the state of their microbiota and receive professional advice.

The test is not suitable for pregnant women or minors. The test cannot be performed if you have Crohn’s Disease or Ulcerative Colitis. If you have taken an oral or intravenous antibiotic or have had a colonoscopy, colon wash or enema, a minimum of 30 days should be allowed. It is not recommended to do it during menstruation.

We recommend doing the test every year to have a more thorough control of the state of the microbiota.

Yes, we have no scientific evidence that the stomach protector interferes with test results.

TestUrGut is based on a panel of 15 microbial markers defined by a group of gastroenterologists and scientists with more than 20 years of experience in the field of intestinal microbiota. It has been validated in a cohort of healthy controls and patients with different intestinal disorders.

For more information, you can check the Scientific Articles section.

Patients with small intestinal bacterial overgrowth (SIBO) present a microbial profile in TestUrGut with a high total bacterial load. Therapeutic measures directed to reduce this total bacterial load will help to treat the SIBO in these patients and in reducing the associated symptomatology.

SIBO (Bacterial Overgrowth) is characterized by excessive growth of microorganisms and an alteration in the type of bacteria that reside in the small intestine. Since there are different types of SIBO, it is important to identify which bacterium is responsible for overgrowth.

The SIBO test involves measuring hydrogen and methane in the breath to detect if there is an increase in the entire bacterial population in the small intestine, without specifically determining which bacteria predominate. TestUrGut, on the other hand, is able to detect patients with a high total bacterial load and identify the bacterium in question.

Knowing this bacterial profile can serve as a useful and complementary tool to the SIBO test to obtain a more accurate diagnosis and recommend a personalized treatment.

Thanks to the study of your intestinal microbiota the specialist of your choice will be able to make a diagnosis and recommend a personalized treatment, from indicating medicines such as prebiotics and probiotics, to recommend dietary supplements or introducing changes in your diet.

Currently, intestinal permeability is evaluated by measuring proteins in the blood. However, with TestUrGut it is possible to observe if there is a decrease in the butyrate-producing bacteria of the intestinal mucosa, a factor that can increase the intestinal permeability favoring an inflammatory state.

Intestinal permeability is usually a consequence of alterations of the tight junctions between cells of the intestinal wall, which decrease leads to increased transport of components and or undesired bacteria into the bloodstream that can trigger chronic inflammation or immunity disorders. Several studies have analyzed the effect of butyrate on intestinal permeability, concluding that it induces the expression of junction proteins, hence keeping permeability (Hamer 2007, Peng 2009, Kelly 2005).

Therefore, dysbiosis or significant alterations in the abundance of muco-nutritive bacteria indicate incremented intestinal permeability.

Any questions?

Check the FAQS section, send us an email or call  972 183 220.

Debido a la festividad del próximo día 6 y 8 de diciembre, esa semana no se realizarán recogidas de muestras.