Amanda Callenberg

“You don’t have to keep your life on hold”

Uncover what your body is really saying through evidence-based Nutritional Therapy and Compassionate Inquiry

…from bloating and discomfort to lasting gut health.

BANT Registered Gut Health & IBS Nutritionist - CNHC · Based in London - Online UK wide

BOOK YOUR FREE DISCOVERY CALL
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Trust Your Gut Again

Living with IBS can feel exhausting.

Bloating, reflux, constipation or diarrhoea may have you stuck in a repeating cycle that’s hard to break.

Many people bounce between doctors, tests, and restrictive diets, and still end up feeling confused and unsupported.

Too often they’re told to “just live with it” or manage symptoms with medication, but rarely offered the specific expertise, holistic approach, or ongoing guidance needed for lasting change.

It’s easy to start believing that nothing will truly work.

Understanding why these symptoms persist is the first step toward lasting relief.

Amanda Callenberg, London-based gut health nutritionist offering online support for bloating, IBS, and digestive health.

Expert Gut Health Specialist - Professor Tim Spector

start with a free chat

Digestive Health Involves More Than Your Gut

“The gut never works in isolation”

Chronic gut issues rarely heal through restrictive diets, random supplements or medication alone.

The health of your microbiome and how well your digestion functions, together with the dietary, lifestyle and environmental factors that influence them, are all fundamental to ongoing gut health.

Your gut is deeply connected to every other system of the body - hormonal, immune and nervous. It not only influences your energy, mood, and sleep, but is also shaped by them.

Because the brain and gut are so closely linked, body states, emotional stress and unconscious patterns often act as hidden drivers of ongoing gut problems.

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A Different Way Forward - Mind, Body & Microbiome

“Restore your biome, release unconscious patterns and create the conditions for true healing”

As a Gut Health Specialist, I explore all the factors that influence healthy digestion. My Mind Body Biome™ approach combines practical, science-based nutrition, Functional Medicine, and lifestyle strategies with mind–body support.

This is about caring for the whole self, so you can move beyond symptoms and create the conditions for true healing.

Nutritional Therapy – Using Naturopathic Medicine and personalised lifestyle & nutrition guidance to identify triggers, nourish all systems of the body, and restore balance to your microbiome.

Functional Testing – Comprehensive gut, SIBO, blood, and hormone testing provide deeper insight into what’s happening inside your body, helping to uncover underlying imbalances and complement targeted nutrition and lifestyle support.

Compassionate Inquiry – A therapeutic somatic method developed by Dr. Gabor Maté with practices to help regulate the nervous system while gently uncovering and releasing the unconscious patterns and emotions that shape your health.

Online consultation with Amanda Callenberg, gut health nutritionist supporting clients with bloating, constipation, diarrhoea & IBS.

True Healing with Gut Health Nutritionist Support

 

“No quick fixes. No one-size-fits-all programs. This is structured, evidence-based gut health support that addresses every layer of your health.”

 

“My GP had struggled for years to get me a diagnosis or effective treatment. Amanda took the time to listen to my history and issues and within weeks, I saw a massive difference” - Martina ⭐⭐⭐⭐⭐

book your free discovery call
 

Hi, I’m Amanda

I’m a London-based Registered Gut Health Nutritionist and Nutritional Therapist (BANT, CNHC) specialising in the microbiome and the gut–brain connection.

Through my 1:1 online clinic, I support people with ongoing gut issues such as bloating, reflux, IBS, and constipation.

Together, we look beyond the surface to uncover what’s really driving their symptoms - from diet, digestion, and microbial balance to lifestyle factors, stressors and ingrained patterns that often lie at the root of their gut dysfunction.

From there, we identify the key areas that need support and create a plan using targeted nutrition, practical daily strategies and somatic tools to restore balance, build long-term resilience and optimise overall health.

My role is to make the path forward simple and manageable, offering expert guidance that fits into real life, while also providing the space for them to explore their hidden emotions and release tension held in the body.

Clients often tell me it’s the first time they feel truly heard and understood.

That’s when the body feels safe, the nervous system relaxes, and the gut can finally begin to heal.

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What You’ll Experience

* Relief from bloating, discomfort, and unpredictable flare-ups

* Improved digestion so you feel light, comfortable, and at ease in your body

* Steadier energy, clearer focus, and relief from brain fog and fatigue

* A calm mind, balanced nervous system, and greater emotional resilience, creating both self-awareness and connection to self

* Freedom to enjoy meals and social occasions, with greater confidence and ease around food

* Clarity about what’s driving your symptoms, and the tools to sustain long-term gut health

* Functional testing, targeted support, with regular guidance and ongoing accountability

Compassionate Inquiry has been fundamental for mind–body connection in Amanda Callenberg’s gut health nutrition practice in London.

Mind–Body Support using Gabor Maté’s CI approach

Start With a Free Chat
 

Quick Q& A

  • It’s understandable. You may feel like you’ve tried everything: every diet, every supplement, every specialist.
    Many people come to me feeling frustrated after years of being bounced between appointments without real answers.

    My role is to help find the missing pieces of the puzzle.
    As a registered Nutritional Therapist, I have access to advanced testing beyond what’s typically offered by your GP, helping to reveal things that are often missed or dismissed within standard care.
    This work isn’t about blanket solutions, it’s about ongoing support, asking the right questions, and uncovering what’s really going on beneath the surface.
    It’s more than a generic meal plan or a ten-minute appointment at the doctor’s office; it takes time, patience, curiosity, and compassion.

  • The discovery call is a relaxed space to talk through what’s been happening for you, your symptoms, challenges, and what you’ve already tried.
    It’s less about me and more about understanding you, and, if possible, offering some insight into where you’re at right now so we can uncover what might be standing in the way of your progress.
    From there, I’ll share how I work, answer any questions you have, and see if it feels like the right fit. No pressure, just an open conversation about what could help you move forward.

  • Not always.
    We start by understanding your symptoms, health history, and goals before deciding whether testing is necessary.
    Functional tests can offer deeper insight when needed, but we only use them if they’ll genuinely support your progress, never as a requirement.

  • Q1: What’s the difference between a gut health dietician and a gut health nutritionist?
    A: Many people search for a “gut health dietician” or “gut health nutritionist” when looking for support with digestive issues like IBS, bloating or reflux. In the UK, “dietitian” is a legally protected title, while “nutritionist” and “nutritional therapist” are also regulated through professional bodies. Dietitians typically work within medical settings, focusing on clinical testing, diagnosis, and medical nutrition interventions. A gut health nutritionist or digestive health nutritionist often takes a more holistic approach, using personalised nutrition, supplementation and lifestyle medicine to support long-term gut health. I am a registered Nutritionist and Nutritional Therapist (BANT, CNHC), and my approach combines personalised nutrition therapy, lifestyle support and functional testing to address the root causes of gut-related issues.

    Q2: What is a gut health nutritionist, and how can they help with IBS, SIBO, bloating or reflux?
    A: A gut health nutritionist is a registered professional specialising in digestive health. They support people with IBS, SIBO, bloating, reflux and other digestive issues by identifying food triggers, improving digestion and restoring microbiome balance. As a qualified digestive health nutritionist, they have access to science-based strategies and functional gut testing which allows them to uncover root causes and create the conditions to reduce flare-ups and discomfort. A good gut health specialist offers more than just a meal plan - they take time to understand your history and lifestyle, and treat you as a whole person rather than just test results. This personalised, human approach, combined with ongoing support, is what makes long-term results possible. And because IBS, bloating and reflux often involve the gut–brain connection, in my work as a nutritionist specialising in gut health, I also address stress, nervous system balance and emotional health.

    Q3: Why is it good to work with a nutritionist specialising in gut health compared to, or alongside, my GP?
    A: Your GP is invaluable, but they usually only have a few minutes to focus on managing your symptoms or ruling out serious medical issues. A gut health nutritionist or digestive health nutritionist has the time to look deeper, exploring your history, lifestyle, diet and stress patterns to understand what’s driving problems like IBS, bloating, reflux or SIBO. While a GP may focus on diagnosis and medication, a gut health specialist nutritionist offers personalised, holistic support that addresses the root causes. The two approaches work best together: medical care ensures safety and oversight, while nutrition therapy provides the time and depth needed for long-term digestive health.

    Q4: Can I manage IBS, bloating or reflux on my own, or do I need a gut health nutritionist?
    A: While some people try to manage IBS, SIBO, bloating or reflux on their own by changing diet or using supplements, results are often short-term or inconsistent. A gut health nutritionist (or nutritionist specialising in gut health) brings expertise in identifying root causes, using science-based strategies, and applying functional testing when needed. More importantly, they provide a personalised plan and ongoing support that takes into account your history, lifestyle, stress patterns, and ongoing changes - something a “DIY” approach often misses. Working with a qualified gut health nutritionist means addressing not only diet, but also microbiome balance, and, when combined with compassionate inquiry, the gut–brain connection and nervous system support. This kind of guidance helps turn trial-and-error symptom chasing into long-term relief and lasting gut health.

    Q5: Do I need to have in-person consultations?

    A: Not at all. Most of my clients work with me through online consultations, from London and across the UK, and most find it easier to stay consistent that way.
    As an online gut health nutritionist specialising in IBS, SIBO, bloating, and digestive health, I offer the same depth of support you’d receive in person.
    Whether you’re searching for a London gut health nutritionist or prefer functional nutrition for digestion and gut healing from home, the process is exactly the same: we explore your diet, microbiome, and nervous system to uncover what’s really driving your symptoms.
    You’ll receive a personalised plan, targeted nutrition for gut repair, and ongoing guidance, everything you’d expect from a private gut health clinic, just with the convenience of working online.

“I can now eat things I never previously could” - Divya ⭐⭐⭐⭐⭐

“Amanda’s support goes far beyond nutrition” - Sam ⭐️⭐️⭐️⭐️⭐️

“I only wish I had thought to do this sooner” - Rene ⭐⭐⭐⭐⭐

 
Gut healing nutritionist – a functional alternative to a gut health dietitian, offering holistic nutrition support for IBS, reflux, and SIBO.
 
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Your Next Step

Your gut doesn’t need another quick fix.

It needs a personalised, natural approach with the right tools and ongoing guidance that considers the whole picture - from digestion to emotional well-being.

If you’re tired of short-term solutions, or of trying to figure this out alone, it may be time to explore what true support feels like.

A powerful first step, if what you've read so far resonates, is to book a free call.

It’s simply a chance to share what’s going on, see if working together feels right, and explore your possible next steps - no pressure, just a gentle chat.

Client success stories with Amanda Callenberg, gut health nutritionist in London, helping people find relief from bloating, IBS, and digestive issues

IBS Nutrition Support for a Healthy Gut and a Healthy You

Book Your Free Discovery Call

If you want to explore a little further first, you can learn more about my Mind Body Biome Method, Read Client Testimonials, See Pricing, and discover more About Me and how I came to do the work I do, by clicking the links.