Living With IBS – You Are Not Alone
Cramping abdominal pain, unpredictable bowel habits, bloating that makes you dread meals – if this sounds familiar, you may be one of the millions affected by Irritable Bowel Syndrome. IBS is one of the most common conditions I treat at our practice in Zürich Seefeld, and I know first-hand how frustrating it can be when you feel dismissed or told it is “just stress.”
The truth is: IBS is a real, physiological condition. And while it is classified as a functional disorder – meaning there are no visible structural abnormalities on standard tests – that does not mean nothing is wrong. Modern research has uncovered measurable changes in gut motility, microbiome composition, intestinal permeability, and the gut-brain axis in IBS patients.
What Causes IBS?
IBS is not caused by a single factor. It is a complex interplay of several mechanisms:
Gut-brain axis dysfunction: The communication between your brain and your gut is bidirectional. In IBS, this signalling is often heightened – the gut becomes hypersensitive to normal stimuli like gas or stretching, and the brain amplifies these signals into pain.
Post-infectious IBS: Up to 15% of IBS cases develop after a bout of gastroenteritis. The infection resolves, but the gut remains sensitised, with lingering low-grade inflammation and altered motility.
Microbiome imbalance: Studies consistently show that IBS patients have different gut bacteria profiles compared to healthy controls. Reduced diversity and overgrowth of certain bacterial species can drive symptoms.
SIBO: Small Intestinal Bacterial Overgrowth is found in a significant proportion of IBS patients, particularly those with bloating and diarrhoea-predominant symptoms.
Food sensitivities: While IBS is not a food allergy, many patients have specific carbohydrate malabsorption issues (FODMAPs) or react to histamine, gluten, or other dietary components.
Stress and psychological factors: Anxiety, depression, and chronic stress do not cause IBS, but they significantly worsen it by altering gut motility and increasing visceral sensitivity.
The Three Subtypes of IBS
IBS is classified based on the predominant bowel pattern: IBS-D (diarrhoea-predominant), IBS-C (constipation-predominant), and IBS-M (mixed). Identifying your subtype helps guide treatment, as the therapeutic approach differs significantly between them.
How We Diagnose IBS
IBS is diagnosed using the Rome IV criteria, but equally important is ruling out conditions that mimic IBS. At our practice, I conduct a thorough evaluation including blood work (coeliac antibodies, thyroid function, inflammatory markers), stool testing (calprotectin, parasites, microbiome analysis), and hydrogen breath tests for SIBO, lactose, and fructose malabsorption. Depending on your age and symptoms, a colonoscopy referral may be appropriate.
What We Do: A Functional Medicine Approach to IBS
Comprehensive testing: Beyond standard diagnostics, I assess your microbiome, look for SIBO, evaluate intestinal permeability markers, and check for nutrient deficiencies that often accompany IBS.
Personalised dietary guidance: A structured low-FODMAP elimination and reintroduction protocol can be transformative. I guide you through this process step by step, often in collaboration with a nutritionist.
Targeted microbiome therapy: Based on your test results, I may recommend specific probiotic strains, prebiotic fibres, or in some cases antimicrobial protocols to address SIBO or dysbiosis.
Gut-brain axis support: This can include vagus nerve stimulation techniques, gut-directed hypnotherapy referrals, mindfulness-based stress reduction, and in some cases low-dose medications that modulate the gut-brain connection.
Motility management: For IBS-C, prokinetic support and osmotic agents; for IBS-D, bile acid sequestrants or specific antispasmodics tailored to your pattern.
Conclusion
IBS does not have to control your life. With a systematic, root-cause approach that goes beyond simply managing symptoms, significant improvement is achievable for most patients. If you have been struggling with IBS and feel you have not received the thorough evaluation you deserve, I welcome you to our practice in Zürich Seefeld for a comprehensive consultation.
