GI Comprehensive Testing Package & Plan
GI Comprehensive Testing Package - Rather than simply handing you results, we connect the dots between your symptoms, lifestyle and gut profile - so you understand what’s really going on and feel confident about what to do next.
This package is ideal if you’re looking for a more detailed and clinically comprehensive overview of your gut health, or if your symptoms have been ongoing and need deeper investigation, the GI Comprehensive includes additional markers such as zonulin (a marker associated with intestinal permeability) and a broader assessment of Clostridia species, offering greater insight where symptoms may be more persistent or complex.
It may be particularly helpful if you experience:
- Longer-standing digestive symptoms
- Bloating, intermittent IBS-type discomfort or food reactions
- Skin concerns that may be linked to gut health
- Joint or arthritic symptoms potentially associated with intestinal permeability
- Unpredictable digestion that hasn’t fully resolved
What you get as a part of the package: Simple at home stool test, a symptom checker questionnaire, dietary analysis, professional results interpretation and a personalised plan all designed to help you understand what’s driving your symptoms and support you on your individual health journey.
More Information:
Using advanced qPCR analysis and 16s rRNA sequencing, this test reveals what’s really happening in your microbiome so you can stop guessing and start taking targeted action.
What this test measures
A wide-ranging panel of essential markers, including:
✔ Full microbiome profile: Detailed mapping of beneficial, neutral and potentially harmful bacteria.
✔ Yeasts and parasites: Detect unwanted organisms that may be contributing to symptoms.
✔ Malabsorption indicators: Understand how well your body breaks down and absorbs nutrients.
✔ Inflammation and gut barrier markers: Includes calprotectin, secretory IgA and zonulin — key for understanding inflammation, immune response and intestinal permeability.
What’s included in your GI Comprehensive package
Everything you need for accurate insight and personalised action:
✔ At-home stool collection kit: Easy, discreet and non-invasive.
✔ Prepaid return shipping: Send your sample straight to the lab at no extra cost.
✔ Advanced lab analysis: qPCR and 16s rRNA sequencing provide clinical-grade results.
✔ Symptom questionnaire: Helps us connect your symptoms with your test findings for more accurate interpretation.
✔ Diet analysis:We assess your dietary patterns to identify potential triggers or areas impacting your gut health.
✔ Professional results interpretation: Clear explanation of microbiome balance, pathogens, inflammation markers, malabsorption indicators and overall digestive function.
✔ Personalised plan based on your findings: A tailored plan from Functional You with step-by-step nutritional, supplemental and lifestyle recommendations to rebalance your gut, reduce symptoms and improve long-term digestive health.
Why choose the GI Comprehensive Test
Ideal for chronic or complex digestive symptoms
Provides deeper insight than standard stool tests
Gives you both answers and a personalised plan so you know exactly what to do next
Helps uncover root causes behind bloating, IBS symptoms, food sensitivities, fatigue, skin issues and inflammation
Offers a clear roadmap to healing and rebuilding gut health
Order your GI Comprehensive Test now and get the clarity and personalised support you need to feel better, faster.
Additional Info
Biovis Diagnostik is one of the world’s leading laboratories in gut health testing, offering microbiome analysis and SIBO testing. They use cutting-edge 16s rRNA sequencing technology and qPCR testing to give detailed information about gastrointestinal health. Biovis is one of the only laboratories to quantify results by writing the colony form in units, as opposed to percentages only, which allows a deeper understanding of bacterial samples.
Turnaround Time: 14 working days
Steps:
- Eat a normal diet for one week before the test
- Collect one stool sample, using the stool collector
- Send the sample to the lab, following the instructions
- Receive an in-depth report of clinically-relevant markers
Test markers
Test markers
Potentially Pathogenic Bacteria
- Haemophilus
- Acinetobacter
- Proteus species (inc. Proteus mirabilis)
- Klebsiella species
- Enterobacter species
- Serratia species
- Hafnia species
- Morganella species
- Providencia species
- Citrobacter species
- Pseudomonas species
Butyrate-Producing Bacteria
- Faecalibacterium prausnitzii
- Eubacterium rectale
- Eubacterium hallii
- Roseburia species
- Ruminococcus species
- Coprococcus
- Butyrivibrio species
- Cl. butyricum
- Total bacterial count
Bacterial Distribution
- Actinobacteria
- Bacteroidetes
- Firmicutes
- Fusobacteria
- Proteobacteria
- Verrucomicrobia
- Other
- Firmicutes/ Bacteroidetes Ratio
Yeasts/Moulds
- Candida albicans
- Candida krusei
- Candida glabrata
- Candida dubliniensis
- Candida parapsilosis
- Candida tropicalis
- Candida lusitaniae
Actinobacteria
- Bifidobacteria
- Equol-producing bacteria
- Adlercreutzia species
- Eggerthella lenta
- Slackia species
Clostridia
- Clostridia total bacterial count
- Clostridia cluster 1
- Clostridia histolytium
- Clostridium perfringens
- Clostridium sporenges
Functional Markers
- Calprotectin
- Haemoglobin in faeces immunologically
- Secretory IgA
- Pancreatic elastase
- Zonulin
H2S Production
- Sulphate-reducing bacteria
- Desulfovibrio piger
- Desulfomonas pigra
- Bilophila wadsworthii
Pathogenic Intestinal Protozoa
- Giardia lamblia
- Entamoeba histolytica
- Cryptosporidium species
- Cyclospora cayetanensis
Digestive Residues
- Determination of fat
- Determination of nitrogen
- Determination of sugar
- Determination of water
Stool Properties
- Colour
- Consistency
- pH
Immunogenically Effective Bacteria
- Escherichia coli
- Enterococcus species
- Lactobacillus species
Pathobionts
- Blastocystis hominis
- Dientamoeba fragilis
- Helicobacter AG
Biodiversity
- Diversity
- Dysbiosis index
Bacteroidetes
- Bacteroids
- Prevotella (Prevotella copri)
Other Firmicutes
- Christensenellaceae
- Dialister invisus
Mucin Production/Mucosal Barrier
- Akkermansia muciniphila
- Faecalibacterium prausnitzii
Enterotype
- 1, 2 or 3
Fusobacteria
- Fusobacterium species
Verrucomicrobia
- Akkermansia muciniphila
Histamine-Producing Bacteria
- Histamine-producing bacteria
Oxalate-Degrading Bacteria
- Oxalobacter formigenes
Archaea
- Methanobrevibacter
Testing Cancellation Policy
Refund & Cancellation Policy
Functional You offers refunds within 7 days of purchase for test kits that have not been dispatched or are returned unopened.
Once a kit has been shipped, only unopened kits returned within the 7-day window may qualify for a partial refund, minus lab and shipping fees.
We cannot refund opened or used kits, digital products, or missed appointments.
If your kit arrives damaged or fails to arrive, contact us within 7 days for a replacement.
To request a refund, email info@functionalyou.co.uk.

