Chronic Intestinal Diseases
Causes, symptoms and therapeutic approaches in functional medicine.

Chronic intestinal diseases such as irritable bowel syndrome (IBS), Crohn’s disease and ulcerative colitis are widespread and significantly impair quality of life. These conditions often involve persistent digestive problems and inflammation. Functional medicine offers holistic approaches to treat these diseases by addressing their underlying causes and optimizing gut health.
How do chronic intestinal diseases develop?
Chronic intestinal diseases arise from a combination of genetic factors, environmental exposures and lifestyle habits. The most common causes include:
- Unhealthy diet: Consumption of processed foods, sugar and unhealthy fats can disrupt the gut microbiome and promote inflammation.
- Nutrient deficiencies: Lack of essential nutrients such as fatty acids, vitamins and minerals impairs gut health.
- Stress: Chronic stress can weaken the gut barrier and lead to an imbalance in gut flora.
- Toxic exposures: Environmental toxins, medications and heavy metals can damage the intestinal lining and trigger inflammation.
These factors can lead to a leaky gut, where undigested food particles and toxins enter the bloodstream and overstimulate the immune system. This can cause systemic inflammation and autoimmune reactions.
Symptoms of chronic intestinal diseases
Symptoms of chronic intestinal diseases vary widely from person to person. The most common symptoms include:
- Abdominal pain and cramps: Frequent and severe abdominal pain often occurring after meals.
- Bloating and fullness: An uncomfortable feeling of fullness and a distended abdomen.
- Diarrhea or constipation: Frequent alternation between diarrhea and constipation.
- Weight loss: Unintended weight loss due to malabsorption of nutrients.
- Fatigue and exhaustion: Persistent tiredness and lack of energy.
- Skin rashes: Skin issues like eczema or psoriasis that can be caused by gut problems.
Role of gut health and nutrition
Nutrition plays a central role in gut health. A gut-friendly diet can help reduce inflammation, strengthen the microbiome and heal the intestinal lining.
- Paleo elimination diet: This diet focuses on eliminating inflammatory foods such as grains, sugar, processed foods and dairy products. Instead, fresh, unprocessed foods like vegetables, fruits, nuts, seeds and high-quality meat and fish are consumed.
- Avoidance of gluten and lectins: Gluten and lectins, found in many grains and legumes, can weaken the gut barrier and promote inflammation. Avoiding these substances can help improve gut health.
- Phytic acid and oxalic acid: These antinutrients found in certain plant foods can hinder nutrient absorption and impair gut health. Avoiding or reducing foods high in phytic acid and oxalic acid (such as soy, spinach and rhubarb) may be beneficial.
Therapeutic approaches and solutions in functional medicine
Functional medicine offers a holistic approach to treating chronic intestinal diseases tailored to each patient’s individual needs. Key therapeutic approaches include:
- Individualized nutritional counseling: Adjusting the diet to the patient’s specific needs and intolerances, including a paleo elimination diet, gluten-free and lectin-free nutrition, and reduction of phytic acid and oxalic acid.
- Nutrient supplementation: Targeted supplementation of vitamins and minerals such as vitamin D, omega-3 fatty acids, zinc and probiotics to strengthen the gut flora and reduce inflammation.
- Promoting gut health: Use of probiotics, prebiotics and gut-healing nutrients like L-glutamine to support the gut barrier and restore a healthy microbiome.
- Stress management: Techniques such as meditation, yoga, mindfulness training and psychotherapy to reduce stress and support emotional health.
- Detoxification: Measures to reduce exposure to environmental toxins and support the body’s detox processes, e.g. through chelation therapy and detox-supporting supplements.
- Sleep optimization: Improving sleep habits and environment to promote restorative and regenerative sleep.
Conclusion
Chronic intestinal diseases can significantly impair quality of life. Through a holistic and personalized approach, functional medicine can help identify and treat the underlying causes. A gut-friendly diet, stress management and targeted nutrient supplementation are key components to improve gut health and well-being. In my functional and nutritional medicine practice, I work closely with you to sustainably enhance your health and quality of life.