Amanda Callenberg

Amanda Callenberg - Gut Health & IBS Nutritionist - BANT & CNHC Registered
4.8
⭐⭐⭐⭐⭐ Google Rated

Tired of planning your day around your gut?
This isn’t just about food.


Personalised 1:1 nutrition support for women with persistent digestive issues - without rigid diets or overwhelm

BOOK YOUR GUT HEALTH CLARITY CALL

A Free 30 Minute Call to discuss your concerns and explore your next steps

Clear insight into what is actually driving your symptoms

✔ See what real personalised 1:1 support could look like for you

✔ Leave with clear next steps to rebuild trust in food and your body

“I work primarily with people who’ve been living with disrupted digestion for months or years, and feel stuck despite doing ‘all the right things’ ”

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Why This Keeps Happening

Living with ongoing gut issues can be exhausting. Bloating, reflux, or unpredictable digestion disrupt your day-to-day life. Restricting foods and anticipating flare-ups often creates a cycle of stress and tension that is hard to break.

Many people move between doctors, tests, and diets, overwhelmed with information but without real clarity. Because digestion is treated in isolation, it is common to be told “everything looks normal” and to be offered little support beyond symptom management or medication.

Over time, gut issues begin to take over. You cancel plans, monitor every meal, gradually lose trust in your body, exhausted by a busy mind that never really switches off. It is not just your digestion that feels restricted, but your confidence, energy, and sense of freedom too. And for most people, this rarely resolves on its own.

If you want digestion to feel more predictable, food choices less stressful, and life easier again, lasting relief starts with seeing your gut as part of a bigger picture.

Professor Tim Spector, leading expert in gut health and the microbiome.

Expert Gut Health Specialist - Professor Tim Spector

Making Sense of Your Symptoms

The gut is closely connected to the rest of your body. Digestion influences, and is influenced by, hormones, sleep, mood, energy levels, and daily habits.

Nutritional Therapy looks at your diet and food choices, but it also considers:

• How your gut functions

• Your lifestyle

• Your sleep

• Your environment

When these factors are overlooked, gut issues often repeat, leaving digestion unpredictable and daily life constantly disrupted.

If symptoms have been present for a long time, the body mayb become more vigilant and reactive. Digestion can start to fluctuate and flare-ups may appear as a result of pressure and stress, as well as after certain foods.

Through experience, I have found that lasting change happens when everything that influences digestion is looked at together. This includes the health of your microbiome, and how your body adapts to the demands of everyday life.

This way of working, shaped by almost a decade of practice, is what I call the Mind Body Biome™ approach.

Diagram of the Mind Body Biome Method showing the connection between mind, body and microbiome in gut health.
  • For many people with digestive issues, symptoms persist not just because of diet, but because the gut becomes more reactive over time, even to foods that once felt safe.

    My approach includes practical nutrition and lifestyle changes, as wells as support to ease gut reactivity.

    Load is the weight your body has been carrying, from stress, self-pressure, and the effort of coping. My work focuses on taking that weight off, so your body can soften.

    Ease is what emerges as your system settles, when pressure is reduced and there’s enough capacity to tolerate change.

    Results that last are built by reducing reactivity before pushing for change. When pressure is reduced, digestion can tolerate more, food choices feel less overwhelming, and improvements are easier to maintain. This leads to steadier symptoms and progress that fits into real life.

“You’re not broken. You’re stuck in a stress-driven pattern, without clear guidance, inside a system that only manages symptoms - and it’s slowly shrinking your life”

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How It Works

There is rarely one single reason gut symptoms keep coming back. By bringing together personalised nutrition, functional testing, and gentle nervous system support, your gut can begin to make sense as part of a bigger picture.

Sometimes the first step is simply helping symptoms calm down. Other times it is about reducing the daily load on your system, or making gentle, precise changes once you have more capacity.

By noticing patterns and making small, sensible adjustments, we work with how your body responds so your digestion can gradually settle.

This moves you beyond constant guesswork, helps rebuild trust in your body, and creates a clearer way forward that feels sustainable rather than overwhelming.

Personalised nutritional therapy as part of the Mind Body Biome approach as a gut health dietitian alternative.
Advanced functional testing used in the Mind Body Biome gut health dietitian alternative approach.
Compassionate Inquiry integrated into the Mind Body Biome approach to gut health dietitian alternative approach.
Experience-informed care within the Mind Body Biome gut health method.

This work is for women who are ready to stop guessing and start working with their body in a more informed, supported way. Let’s talk through your concerns and what’s been keeping you stuck

BOOK YOUR GUT HEALTH CLARITY CALL

During the call, if you feel we’re a good fit, I’ll explain how I work. If not, you’ll leave with clarity and no pressure to continue

Dr Gabor Maté, whose Compassionate Inquiry approach informs Mind Body Biome gut health support.

Renowned Physician & Compassionate Inquiry Founder - Dr Gabor Maté

You’ll Receive

This approach is designed to give you personalised nutrition support with clarity and steady guidance, and additional tools used if and when they are genuinely helpful.

You can expect:

Clear insight into what is driving your symptoms

✔ Practical strategies to support your gut health day to day

✔ Ongoing support and regular check-ins, so you are not navigating this alone

✔ Structure to help you build sustainable, long-term habits

✔ Targeted supplements, when appropriate

✔ Advanced functional testing, if needed, with results explained simply and clearly

✔ A compassionate, experience-informed approach that brings depth and understanding to our work together

For my clients, this combination of nutritional expertise and support to help their system settle, often makes the biggest difference.

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This approach is for you if you want more than a gut health dietitian, with personalised mind-body-gut support
Amanda Callenberg explaining her personalised mind-body-gut approach, not a traditional gut health dietitian or quick-fix meal plan service

If you’ve been dealing with digestive issues for a while and want personalised support that looks beyond symptoms, this is the next step

BOOK YOUR GUT HEALTH CLARITY CALL

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

Amanda Callenberg, BANT registered nutritionist specialising in gut health.

Who I Work With

Hi, I’m Amanda. I’m a London-based registered gut health nutritionist and nutritional therapist (BANT, CNHC).

I support people with IBS, bloating and reflux, constipation and diarrhoea, and stress-related gut issues.

Many of the women I work with have already tried the usual paths and are looking for something more tailored, and sustainable. My work is highly personalised, combining nutrition and lifestyle support, with the option to gently explore deeper layers of healing if that feels helpful.

My role is to create a path that feels clear, simple, and manageable, while also offering tools to reduce stress and tension in the body. Together, we work towards restoring internal balance and creating the conditions for long-term gut health and resilience.

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Testimonials - What My Clients Say

I worked with Amanda for six months and the difference has been remarkable. Her tailored eating plan, supplement support and careful use of testing gave me insights I’d never had before. The results were genuinely startling” - Manny ⭐⭐⭐⭐⭐

Amanda's guidance has been both practical and deeply supportive. I’ve seen genuine improvements in my energy, digestion and overall wellbeing, and for the first time nutrition feels simple, sustainable and actually enjoyable” - Peter ⭐⭐⭐⭐⭐

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 ⭐⭐⭐⭐⭐

What I love most about Amanda is her non judgmental approach, she provides me a safe space where I feel confident enough to open up to her and she compassionately takes the time to listen and understand anything I share” - Zahraa ⭐⭐⭐⭐⭐

 
 
 
 

If you recognise yourself in this approach and are serious about changing how your gut issues affects your life, it starts below.

BOOK YOUR GUT HEALTH CLARITY CALL

What They Experience

Across my work, clients often describe similar shifts. As clarity increases, their symptoms begin to make more sense, and they notice changes both physically and emotionally.

Many people report:

✔ Less bloating, discomfort, and fewer flare-ups

✔ Digestion that feels easier and more predictable

✔ Steadier energy and clearer focus through the day

✔ A calmer, more settled nervous system

✔ Feeling more relaxed and confident around food

✔ Greater ease in social situations

✔ More freedom to live life without constant restriction

Client success image encouraging visitors to book a free gut health call for gut health dietitian altetrnative support.

“Health begins in the gut - but healing begins in the nervous system.”

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Quick Q & A

  • It’s completely understandable. Many people with long-standing gut symptoms feel they’ve tried everything, every diet, every supplement, every specialist, yet still end up stuck in the same cycle of flare-ups and uncertainty. After years of being bounced between appointments without clear answers, it’s normal to feel discouraged.

    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 a GP, which can reveal things often missed or dismissed in standard care. This work isn’t about blanket solutions, it’s about ongoing support, asking the right questions and understanding what’s truly driving your gut symptoms.

    It’s far more than a generic meal plan or a ten-minute appointment; meaningful change 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, so we can begin to uncover what may be driving your gut symptoms or holding you back from feeling better.

    If it’s helpful, I’ll offer some insight into where you’re at right now. From there, I’ll explain how I work, answer any questions you have, and together we’ll see whether it feels like the right fit. No pressure, just an open conversation about what could help you move forward.

  • Not always.
    We begin by understanding your symptoms, health history and goals before deciding whether testing is necessary. Functional tests can offer deeper insight into gut health when the picture isn’t yet clear, but we only use them if they will genuinely support your progress, never as a requirement.

  • Q1: What is the difference between a gut health dietitian and a gut health nutritionist?
    A: Many people search for a gut health dietitian or gut health nutritionist when looking for support with bloating, reflux or ongoing digestive symptoms. In the UK, "dietitian" is a legally protected title, while "nutritionist" and "nutritional therapist" are regulated through professional bodies such as BANT and CNHC. Dietitians typically work in medical settings and focus on clinical testing, diagnosis and medical nutrition interventions.

    A gut health nutritionist takes a more holistic approach, using personalised nutrition, supplementation, lifestyle medicine and functional testing to address the root causes of digestive issues. As a registered Nutritionist and Nutritional Therapist (BANT, CNHC), my work combines these tools to support long-term gut health.

    Q2: What is a gut health nutritionist, and how can they help with bloating or reflux?
    A: A gut health nutritionist is a registered professional who specialises in digestive health. They support people with bloating, reflux, constipation and other gut symptoms by identifying food triggers, improving digestion and restoring microbiome balance.

    As a qualified digestive health nutritionist, I use evidence-based strategies and functional testing when appropriate to understand what is driving your symptoms. A good gut health specialist looks beyond a simple meal plan and takes time to understand your history, lifestyle, stress patterns and the gut brain connection. This personalised and ongoing support is what makes long-term improvement possible.

    Q3: Why work with a nutritionist specialising in gut health compared to, or alongside, my GP?
    A: Your GP plays an important role, especially in ruling out serious conditions. However, GP appointments are often brief and focused on symptom management. A gut health nutritionist has the time to look deeper into your history, lifestyle, diet and stress patterns to understand what is driving your digestive symptoms.

    While a GP may focus on diagnosis or medication, a gut health specialist provides personalised and holistic support that addresses underlying causes. The two approaches work well together. Medical care ensures safety, while nutrition therapy provides the depth needed for lasting digestive change.

    Q4: Can I manage bloating or reflux on my own, or do I need a gut health nutritionist?
    A: Many people try to manage gut symptoms on their own by changing their diet or using supplements, but results are often short-lived or inconsistent. A gut health nutritionist brings expertise in identifying root causes, using science-based strategies and applying functional testing when helpful.

    They also provide a personalised plan and ongoing support that adapts to your lifestyle, stress patterns and changing symptoms. This type of guidance addresses diet, microbiome balance, the gut brain connection and nervous system support. These are key factors in achieving long-term digestive relief.

    Q5: Do I need to have in-person consultations?
    A: Not at all. Most clients work with me online and find it easier to stay consistent that way. As an online gut health nutritionist, I offer the same depth of support that you would receive in person.

    Whether you are looking for a London gut health nutritionist or prefer to work from home, the process is the same. We explore your diet, microbiome and nervous system to understand what is driving your symptoms. You receive a personalised plan, targeted nutrition for gut repair and ongoing guidance, all with the convenience and comfort of home.

Your Next Step

Your gut does not need another quick fix.

It requires a personalised approach, the right tools, and steady guidance that looks at more than diet alone. This means including lifestyle factors, microbiome health, and how your nervous system and emotional wellbeing may be affecting your ability to heal.

If you are tired of short-term solutions, or of trying to figure this out on your own while symptoms continue to interrupt daily life, it may be time to explore what real support feels like.

If what you have read so far resonates, the next step is to book a free call.

This conversation is for you if you are ready to move beyond simply managing symptoms and start understanding what your body has been asking for.

BOOK YOUR GUT HEALTH CLARITY CALL
Freedom and confidence around food and digestion with the Mind Body Biome gut health approach.
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What happens next:

Once I receive your enquiry, I’ll be in touch to arrange your Gut Health Clarity Call.

The call is a structured, supportive conversation to understand your current challenges and what you are hoping to change.

We’ll talk through your symptoms and what’s been keeping you stuck.

You’ll leave with clear next steps – whether we decide to work together or not.

If you’d like to learn more about me before booking a call, you’re welcome to read about my background and the inspiration behind my work, as well as explore detailed client testimonials.

amanda@amandacallenberg.com | +447984668090 | IG: @amandacallenberg