Digest Check-up : Gut Health Blood Test with Nutritionist in Zurich & Geneva
Do you feel like your gut is running the show? Bloating after every meal, unpredictable digestion, low mood or anxiety, chronic skin flare-ups, or recurring sinusitis that no one seems to be able to explain. These are not just inconveniences. They are signals that something deeper may be out of balance. A targeted blood test combined with microbiome analysis can help identify potential contributing factors and guide more personalized next steps.
Our Digest Check-up is a comprehensive gut health blood test combined with a microbiome analysis and personalized nutritional guidance, designed to identify whether your symptoms stem from dysbiosis, food sensitivities, nutrient malabsorption, or low-grade inflammation. Developed in partnership with Elodie Brocas, nutritionist at The Good Life Specialist, this nutrition blood test is available at our clinics in Zurich and Geneva, with no prescription needed.
Understanding the gut and why standard tests miss the full picture
Most people with digestive issues have been told their results are within normal range. But conventional blood tests are not designed to look at gut health specifically. They check the obvious, and miss the subtle. Chronic bloating, food sensitivities, abdominal pain, constipation or diarrhea, excess gas, and inflammatory skin conditions all have measurable biological roots. The Digest Check-up helps identify potential root causes of your daily disconfort.
Your gut is directly connected to your immune function, your skin, your mood, and your energy levels. When something goes wrong in the gut, the consequences are felt throughout the entire body. A targeted gut health blood test gives you and your nutritionist the precise data needed to act, not just observe
What does our digest Check-up examine?
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An underactive thyroid slows every digestive process in the body, causing constipation, bloating, and sluggish bowel movements that no amount of dietary adjustment will fix. Thyroid dysfunction is one of the most frequently overlooked causes of chronic digestive discomfort, and it is invisible without a blood test.
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Vitamins D and A are key regulators of gut barrier integrity and immune balance. When levels are suboptimal, this may impact intestinal barrier function, sometimes referred to “leaky gut” (increased intestinal permeability). This may allow certain molecules to enter the bloodstream and contribute to inflammation, which can be associated with symptoms beyond the gut, such as skin issues or recurrent infections.
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Iron deficiency can be associated with digestive dysfunction. Impaired iron absorption may reflect alterations in the small intestine and is sometimes seen in the context of inflammation or reduced nutrient uptake.
Low ferritin, even when iron levels appear normal, is a sensitive early warning sign. -
Zinc is essential for the continuous repair and regeneration of the intestinal lining. Low zinc levels are found consistently in people with chronic digestive complaints, reflux, food sensitivities, and recurring skin conditions such as acne and eczema. It is rarely tested in a standard blood panel.
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The liver produces bile, which is essential for fat digestion and the absorption of fat-soluble vitamins. Impaired liver function disrupts this process, causing bloating, heaviness after meals, and fat malabsorption. Liver enzymes can also reflect broader metabolic stress, which may interact with digestive health.
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Chronically elevated blood sugar disrupts gut motility and the balance of intestinal bacteria. A diet high in refined carbohydrates is one of the primary drivers of dysbiosis, the imbalance of gut bacteria that causes many of the symptoms associated with irritable bowel syndrome and food sensitivities. HbA1c provides a reliable 3-month average of your blood glucose levels
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Most labs measure total B12, which includes both active and inactive forms. Holotranscobalamin measures only the active, bioavailable form, making it a significantly more sensitive early indicator of deficiency. B12 is essential for the health of the intestinal mucosa and the nervous system that governs gut motility. Deficiency can cause symptoms that closely mimic irritable bowel syndrome, including bloating, irregular transit, and abdominal discomfort.
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Standard CRP is primarily used to detect acute inflammation, such as infection or injury. High-sensitivity CRP (hsCRP) allows for the detection of lower levels of inflammation, which may reflect low-grade, chronic inflammatory processes.
It is considered a useful marker in the context of metabolic and digestive health. -
Beyond the blood test, our microbiome analysis maps the diversity and balance of your gut bacteria, identifying dysbiosis, bacterial overgrowth, or deficiencies in key bacterial strains. These imbalances may influence digestion, immune function, and interactions within the gut–brain axis. The gut microbiome is increasingly described by researchers as a second brain. When it is out of balance, the effects are felt everywhere.
What happens after your results?
Your Digest Check-up results are available on the Kiro platform, with clear explanations and visual indicators for each biomarker. Once your results are ready, Elodie Brocas, nutritionist in Zurich at The Good Life Specialist, reviews your complete panel and provides a personalized nutrition plan that addresses the specific imbalances identified in your test. Whether the root cause is dysbiosis, a nutrient deficiency, or low-grade inflammation, you leave with a clear, actionable roadmap.
FAQS
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Blood markers tell you about inflammation, nutrient absorption, and organ function. The Microbiome analysis offers a complementary view of the composition and balance of gut bacteria.
Together, these two approaches provide a more comprehensive understanding than either alone. Blood markers can indicate the presence of inflammation or metabolic imbalance, while microbiome analysis may highlight bacterial patterns that could be contributing to these findings.
For anyone dealing with chronic digestive issues or food sensitivities in Zurich or Geneva, combining both approaches offers a more in-depth, data-driven assessment. -
Low-grade inflammation is a silent, persistent immune response that produces no fever, no acute pain, and no obvious symptoms, but steadily damages tissues over time. In the gut, it weakens the intestinal lining, disrupts bacterial balance, and drives symptoms like bloating, abdominal pain and excess gaz, food sensitivities, skin flare-ups, and recurring sinusitis. The High-sensitivity CRP (hsCRP) is commonly used as a marker to assess this type of inflammation. Based on your results, our nutritionist can provide personalized dietary recommendations aimed at supporting a balanced inflammatory response.
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Yes, we recommend fasting for 8 to 12 hours before your blood draw. To ensure optimal accuracy for certain parameters, including glucose metabolism and lipid markers. Water is allowed.
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The blood test results are available within 3 to 5 days. The microbiome analysis takes up to 15 days from the moment the laboratory receives your sample. You will be notified by email as soon as all results are available on the Kiro platform. A consultation with our nutritionist can then be scheduled to review your results and define personalized next steps.