Gut microbiome
The gut microbiome is highly complex and consists of a vast number of microorganisms, primarily bacteria. It's a networked organ connected to various parts of the body and can thus have a significant impact on health and well-being.
C-FISH , NL-Lab is able to fully measure the gut microbiome and identify it correctly with 96% accuracy. This provides better insight into the situation and what can be done to restore balance.
We offer gut microbiome research for:

Why choose NL-Lab?
Rich and unique data thanks to our superior C-FISH analysis method.
Smart interpretation of measured data, thanks to proprietary models, protocols, and methods.
Scientifically based therapeutic advice that is tailored to practice.

Gut microbiome studies for healthcare providers
Our assessments are suitable for all healthcare professionals (doctors, therapists, dietitians, coaches, etc.) who focus on nutrition and health. They can use our easy-to-understand reports and practical therapeutic advice to develop a diagnosis and treatment plan.
If you have any questions or suggestions about the offer, please feel free to contact us.
The layout of our offer for practitioners
Dysbiosis packages
PRO-Dysbiosis
The general gut microbiome packages
PRO-Expert (can only be ordered by practitioners)
PRO-Master (can only be ordered by practitioners)
Package composition as of October 15, 2025:
The specific gut microbiome studies
These studies focus on a specific part or function of the gut microbiome.
These studies can be ordered separately or as a supplement to other gut microbiome packages.
Extensive parasite research
If you experience recurring intestinal complaints, there's a good chance a parasitic infection is the cause. Our research is the most comprehensive parasite study available and identifies the 16 species responsible for over 95% of parasitic intestinal infections worldwide.
Quality of digestion
Complete insight into the quality of digestion. This test is suitable for (suspected) osmotic diarrhea, steatorrhea, pancreatic insufficiency, and impaired liver function. The test includes determination of fat, carbohydrate, protein, and water content, as well as pancreatic elastase in the stool.
Gluten sensitivity
Provides an indication of food intolerance, specifically celiac disease. The test includes determination of anti-transglutaminase, anti-gliadin, and histamine levels.
Yeasts & Molds
This kit tests for elevated yeast and/or mold levels and their activity. The possible presence of Candida albicans and Aspergillus is specifically noted in the report.
The gut microbiome studies on request
These studies focus on a specific part or function of the intestinal microbiome and can only be requested after consultation with NL-Lab.
If you are interested, please contact us.
Probiotic testing
We can test probiotics for the presence of bacterial species, bacterial numbers and the activity of the cells present.
Pro Biotica Personal
The results of this study can be used to request personalized probiotics from third parties and provide insight into the composition and activity of the gut microbiome. You will also gain insight into the degree and type of dysbiosis, the diversity of the microbiome, the permeability of the intestinal wall, and any inflammation of the intestinal wall.
Bowel-related disorders
Our PRO-Expert and PRO-Master packages include additional studies that map the influence of the gut microbiome on gut-related disorders.
This concerns conditions that are directly related to the intestines (proximal conditions such as IBS, leaky gut, colic) and conditions that run across the various intestinal axes (distal conditions such as depression, asthma, eczema).
NB: These tests provide insight into the potential contribution of the gut microbiome to the development or maintenance of a specific condition. The test results are not a diagnosis and should be assessed by the healthcare provider.
The gut-related disorders
- SIBO
- Type 2 diabetes
- Colic
- Leaky gut
- Obesity
- IBS
- Crohn's/Colitis
- ADHD
- Asthma
- COPD
- Depression
- Eczema
- Hypertension
- ME/CFS
- Kidney stones

Register without obligation
Registration is not obligatory. After registration, you will receive all relevant materials, including price lists.
Webinar about our offer
In September 2023, we organized a webinar in which we discussed the complete range of services for practitioners:

Gut microbiome studies for individuals
As a private individual, you can also request tests to gain insight into your microbiome.
Currently, the Intestinal Balance and Complete Intestinal Balance comprehensive parasite screening is also
As well as research into yeasts & fungi and corona antibodies !
Are you interested in the gut microbiome studies for healthcare providers listed on this page? Contact us, and we'll send you a list of providers offering these studies.
Gut microbiome research for top athletes
Learn more about the possibilities NL-Lab offers for optimizing and monitoring the gut microbiome of elite athletes.

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