Client Conditions Acid Reflux and GERD Adrenal Fatigue Bloating and Gas Candida Constipation Diarrhea Food Intolerances & Sensitivities H. pylori Histamine Intolerance Hormone Imbalances Intestinal Methanogen Overgrowth (IMO) Intestinal Parasites Irritable Bowel Syndrome (IBS) Leaky Gut ​​Mold & Mycotoxins Small Intestinal Bacterial Overgrowth (SIBO) Other conditions
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The Functional Gut Health Clinic

Professional bio - Christina Georgallou

Christina Georgallou is a UK-based Functional Nutritional Therapist and specialist in chronic digestive issues including constipation, bloating, diarrhoea and SIBO. Her approach combines detailed health history analysis with advanced functional lab testing, enabling her to create evidence-based diet, lifestyle and natural supplement protocols tailored to each client.

With over two decades of first-hand experience navigating chronic constipation and other  digestive symptoms, Christina brings a rare combination of clinical expertise, lived understanding and empathy to her work. Clients consistently describe her as thorough, supportive and deeply invested in their progress, qualities that make her a trusted guide through even the most complex gut-healing journeys.

Christina holds a First-Class BSc (Hons) in Physiology from King’s College London and a post-graduate Diploma in Nutritional Therapy from the College of Naturopathic Medicine. This scientific foundation, combined with functional training and her personal healing journey, allows her to confidently identify and address root-cause drivers of chronic gut symptoms, food intolerances, and skin imbalances.

Christina most commonly supports clients with:

  • SIBO testing and natural protocol recommendations

  • GI Map testing and tailored protocols for H.Pylori, parasitic infections, yeast overgrowths, and dysbiosis.

  • Additional testing such as Organic Acid Test (OAT), Mycotoxin testing and others where relevant to identify additional functional imbalances

 

'“After years of severe facial flushing, debilitating skin flares and chronic gut issues, I had almost given up. Every doctor I saw dismissed the gut–skin connection and the only option left was immunosuppressants. Working with Christina changed everything. For the first time in four years, I’m off daily antihistamines and rarely need steroid creams. I’m eating a wide range of foods again and enjoying meals out without fear. Christina explained every step with so much care and clarity that I felt completely supported throughout. I cannot recommend her highly enough.”

★★★★★

Elise (London, UK)

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My personal health journey

My digestive story began much earlier than I initially realised. At six years old, I remember the first episodes of debilitating tummy aches that would last for days. After a brief medical review, these symptoms were labelled “psychosomatic” - my first introduction to the gut-brain axis and the deeply unhelpful idea that my symptoms were “in my head.”

Through my teens and twenties, I lived with constipation, bloating, low energy and persistent skin breakouts. In an attempt to “fix” things, I turned to restrictive diets and online advice, unknowingly causing further imbalance. By my early twenties, I had lost my period, my digestion had worsened, and every specialist I saw offered the same limited solutions: laxatives and the contraceptive pill.

It became clear that if I wanted long-term relief, I needed a different path.

Inspired by my Dad’s naturopathic healing journey, I enrolled at the College of Naturopathic Medicine. There, I began to understand the interconnectedness of nutrition, lifestyle and the microbiome, and finally gained the insights I needed to transform my own health. As I healed, I rediscovered bowel regularity, energy and confidence and finally understood what my body had been asking for all those years.

My journey wasn’t quick or easy, which is why I’m so passionate about guiding others through theirs. I’m here to dispel the poo taboo, help clients feel heard and understood, and support them in taking back control of their gut health so they can live freely and fully again.

 

“After years of chronic gut issues, fatigue and extreme bloating, I finally felt listened to for the first time with Christina. Healing wasn’t linear, but her compassion and steady guidance made every step feel manageable. The protocol she designed transformed my symptoms and helped me understand what my body needed to truly recover. I’m now in the stabilisation phase and feeling better than I ever imagined. Christina’s support has been invaluable.

★★★★★

Léonie (Paris, France)

“After five years of gut issues and so many failed attempts at healing, working with Christina has been life-changing. Her knowledge is exceptional and she guided me through every twist and turn of the process with patience and clarity. After eight months of consistent work, I’m finally symptom-free and feel like myself again. I couldn’t have reached this point without her”

★★★★★

Miljan (London, UK)

“For almost 10 years, my life was ruled by gut symptoms and I could barely eat anything without pain. Working with Christina completely transformed that. Her empathy, attention to detail and tailored approach made me feel understood from the start. After a year, I can now eat almost anything without symptoms, enjoy social meals again and live without constant fear of flare-ups. It has genuinely changed my life.”

★★★★★

Benjamin (Occitanie, France)

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Europe Clients

Clients from Europe, please use the following booking link.

BOOK NOW - EUROPE

USA & CAnada Clients

Clients from USA & Canada, please use the following booking link.

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“Our clinic is so fortunate to have a practitioner as intelligent, experienced and empathetic as Christina. When a practitioner has had their own gut-healing journey and is able to combine that with their university education and years of clinical experience with hundreds of clients, it is truly amazing the life-changing results that are possible. I’m extremely proud of the impact Christina continues to have with our clients here at The Functional Gut Health Clinic.”

Bella Lindemann (Founder of The Functional Gut Health Clinic)

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Read more client stories

  • I’m deeply grateful for the work I’ve done with Christina and can’t recommend her highly enough.

    We’ve worked together since late 2024 through multiple layers of healing: dysbiosis, candida, hormonal suppression, pathogens, nervous system dysregulation and SIBO. What sets Christina apart is her intelligent sequencing. She never rushed to kill off SIBO and hope for the best (which other practitioners have done and which led to relapse), but instead she understood that in my case SIBO was a nervous system issue first and a gut issue second. She recommended tools for nervous-system regulation alongside gut-focused protocols, which made all the difference.

    Thanks to her guidance, my MMC has come back online, my gut health has improved immensely and I'm now free from SIBO. If you’re looking for a practitioner who combines clinical precision with true systems-level understanding, Christina is outstanding.

  • “I have had extremely debilitating gut issues for over 2 years that completely changed my day-to-day life, and thanks to Christina I have almost done a full 180 and am finally feeling like myself again!

    Christina has been super easy to contact, very friendly and genuinely concerned in trying to help me. We had a lot of serious gut issues to cover, so it has been a slow process, but I can't recommend her and the clinic enough to anyone experiencing debilitating gut symptoms.”

  • “My journey with the Functional Gut Health Clinic has been indescribable. 

    My goals when selecting a clinic were that they needed to have been on their own journey, so that they could relate to their clients. I also wanted to have clear targets in order to keep me motivated, as I had been on a strict candida diet previously which I was having trouble sticking with. Additionally, I set out for a female practitioner as I personally felt I would benefit from a nurturing energy. 

    Working with Christina was like having a team mate in my health journey. She worked tirelessly on my protocols and addressed all of my concerns. I felt that I understood and learned so much about everything that we worked on and never once felt that the target was unachievable. She really is so knowledgeable so my objective was to learn as much as I could from her in the time that we had. 

    The FGHC doesn't just "fix" your gut health issues, but it gives you the tools to achieve and maintain optimal wellness. Ultimately your progress depends on how well you follow their advice, but you aren't alone, like many of us have been on this journey. 

    My quality of life has improved immensely. I feel that I now have a toolkit for maintaining my gut health. 

    I owe Christina and the FGHC so much. I am so thankful to them and I promise that if you decide to incorporate them into your gut health journey, you will not regret it :)”

  • “I wanted to say that I very much enjoy our sessions and have found you very supportive all through the months. You are the best functional health practitioner I have ever had.”

  • “My parents and I were amazed by the depth and breadth of knowledge which you hold and how you were explaining everything - this is not something which I have experienced by any medical practitioner thus far.”

  • Thank you so much for your support during the last months. With everything doing better and better, I can only be confident for this summer. My new good habits and the understanding of my body/gut are precious. I am grateful to work with you on this journey

  • If you have any gut issues, I 100% recommend to work with Christina. Her approach, understanding and work has had a huge impact on my physical and mental health and I am extremely grateful to have found her. It's incredibly difficult to find doctors and practitioners who understand where you're coming from and not diminish symptoms, and Christina's approach has significantly improved my health. Worth every penny and even more when you think of the long term benefits of a healthy gut.

 
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