Amanda Callenberg

IBS & Complex Gut Health Nutritionist





Deeper support for women with persistent gut symptoms

4.8 ⭐⭐⭐⭐⭐ Google Rated

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BANT Registered Nutritional Therapist · CNHC Accredited · Somatic Counsellor (ACCPH) · Mind-Body-Biome™ Method

Expert in IBS and complex digestive health, with a focus on the gut–brain relationship and nervous system regulation. Integrating personalised nutrition, somatic approaches and Compassionate Inquiry.

When gut symptoms keep returning, it’s rarely just about food

You may have already tried diets or elimination approaches, supplements, gut protocols, or standard medical routes.

But symptoms still return, shift, or feel unpredictable.

Many people arrive looking for help with IBS, bloating, reflux or food sensitivities. Others are struggling with fatigue, hormone-related symptoms, poor sleep, or a collection of symptoms that don’t seem to fit neatly into one diagnosis.

You might notice your digestion changes with stress, routine, hormonal shifts, or even small triggers, or that what worked briefly stops working altogether.

At this point, it’s not simply about finding the “right” plan. It’s about understanding what is contributing to your symptoms, including what's happening in your body, your nervous system and your life.

Hi, I’m Amanda

I’m an Australian born, London-based IBS and Gut Health Nutritionist, Registered Nutritional Therapist (BANT, CNHC) and Somatic Counsellor (ACCPH).

With nearly ten years in nutritional practice, I specialise in IBS and complex digestive health, particularly the relationship between the gut, brain and nervous system. My approach brings together personalised nutritional therapy, functional medicine, nervous-system-informed care, somatic approaches and Compassionate Inquiry.

I work with people whose digestive symptoms have persisted despite dietary changes, supplements or other interventions, exploring both the physical aspects of digestive health and the wider influence of stress, coping patterns and past experiences.

Areas of Focus

Complex Digestive Health & IBS · Gut–Brain Interaction · Nervous System Regulation · Stress & Emotional Wellbeing · Hormonal Health · Persistent & Unexplained Symptoms

My Approach

Personalised Nutritional Therapy · Functional Testing · Somatic Counselling · Compassionate Inquiry · Trauma-Informed Practice


MIND - BODY - BIOME


SEE THE PERSON - NOT THE PARTS

Within my 1:1 online clinic, I specialise in helping people living with persistent digestive symptoms, especially those whose issues flare with stress, feel unpredictable, or haven’t improved through conventional routes.

My Mind Body Biome method brings together:

Personalised nutrition - rooted in functional medicine and naturopathic principles.

Compassionate Inquiry – exploring emotional responses, coping patterns and the influence of past experiences through a psychologically informed, relational approach.

Trauma-Informed Care – prioritising safety, trust, choice and individual pacing throughout our work together.

Somatic Counselling – developing awareness of bodily sensations and nervous system responses, with an emphasis on regulation and stability.

Functional testing (if required) - GI360, SIBO test, DUTCH, blood panels.

This combination of approaches helps you build a clearer understanding of your symptoms, explore the less visible influences on your digestion, and identify factors that may be contributing to persistent gut issues.

While digestive health remains my primary specialism, this whole-person approach is relevant to wider health concerns, particularly where stress, nervous system responses, gut health, hormonal changes and physical symptoms intersect.

This work takes place through tailored multi-month 1:1 programmes rather than one-off consultations. We begin with weekly sessions to establish a strong foundation, gradually moving to a fortnightly rhythm as the work progresses.

Consultations combine practical nutritional guidance with space to explore the wider aspects of your health, at a depth and pace that feels appropriate for you.

Regular calls and ongoing guidance between sessions allow us to respond to changes, challenges and new insights as they emerge, rather than following a fixed protocol.

The value of this work lies not only in the recommendations themselves, but in the time, attention and continuity needed to understand you as an individual.

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When This Approach is a Good Fit

Some people come to me early, when symptoms are still relatively mild and they want clear, personalised guidance before things become more entrenched. Many are looking primarily for nutrition-focused support, while others are curious about a broader, whole-body approach. I believe everyone benefits from understanding the wider influences on their health, even when the work itself remains focused on nutrition.

Others arrive after years of persistent symptoms have left them feeling discouraged or overwhelmed by how difficult things have become. They may have tried numerous approaches, experienced only temporary improvements, or struggled to make sense of symptoms that feel confusing or unpredictable. My work helps them develop a clearer understanding of what's happening in their body, including aspects of their health that may not previously have been explored.

Not everyone needs or wants the same depth of work. Some people benefit from a predominantly nutritional approach, while others are ready to explore the relationship between their physical health, emotional responses, coping patterns and past experiences. The direction and depth of our work are always shaped by the individual.

This approach is particularly well suited to those who have not found lasting relief through GP consultations, medications or restrictive diets, as well as those who are drawn to a more natural, personalised, whole-body approach and are open to looking beyond food alone.

 
 

This work is individually paced and high-touch, offering a level of contact and depth that goes significantly further than one-off consultations or standard nutrition and dietetic programmes. Depending on programme length, clients receive a minimum of 7–15 hours of direct 1:1 time, with ongoing support between sessions.

 

This way of working is especially suited if:

• You want clear, structured support at a pace that feels manageable and stabilising

• You value being properly listened to, not rushed or reduced to a symptom list

• You would like a plan that adapts to how you’re feeling week by week

• You’ve been living with gut symptoms for a long time and feel tired of starting over

• You have already tried the usual routes with only partial or short-term results

• You’ve lost trust in food choices, your body, or the idea that things can improve

Amanda Callenberg, nutritional therapist and somatic counsellor, compassionate Inquiry
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If You Prefer A Quieter Starting Point

Some people who arrive here already sense their symptoms are influenced by more than food alone. Although my work is grounded in nutrition, the heart of my approach involves exploring the other factors that affect digestive health: sleep, stress, daily habits, and how supported your body is overall.

This short quiz looks at your digestion, energy levels, stress patterns, and daily demands to help you reflect on what may be contributing to your symptoms and where you might benefit from more support.

• 14 multiple choice questions • 2-3 minutes •
• NO EMAIL REQUIRED •

Beyond the Diagnosis

People come to me with a wide range of diagnoses, including IBS, SIBO, IBD and reflux. Others experience persistent bloating, constipation, diarrhoea, food sensitivities or histamine reactions without a clear explanation.

Many experience several overlapping concerns, with symptoms that return despite dietary changes or aren't consistently linked to food triggers.

While a diagnosis can be useful, it doesn't tell us everything about the person experiencing those symptoms or the factors contributing to them.

Digestive symptoms rarely exist in isolation. Many clients also experience fatigue, hormone-related symptoms, thyroid concerns, poor sleep or other stress-sensitive health challenges.

Explore IBS, SIBO, bloating, reflux, and some of the other conditions and related health concerns I support below.

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Get In Touch to Discuss 1:1 Support

Many people come to me after trying “personalised” plans that were still quite formulaic. What I offer is adaptive and relational, shaped in real time around your body, your progress, and your life.

All packages begin with weekly sessions, moving to fortnightly appointments as appropriate.

Minimum 9–16 appointments, depending on programme length, including dedicated Compassionate Inquiry integration sessions.

7–15 hours of direct 1:1 call time, allowing your plan to adapt as your body changes rather than relying on fixed protocols.

Messenger and email support between sessions.

Trusted by clients with long-standing digestive symptoms, fatigue and other persistent health issues that have been difficult to resolve.

“From the very first session, I felt completely comfortable and understood.”
Manny · Google Review ⭐⭐⭐⭐⭐

“Nothing was ever a rush and yet we achieved so much.”
Emma · Google Review ⭐⭐⭐⭐⭐

“Within our first couple of weeks I saw a massive difference and started to feel better.”
Martina · Google Review ⭐⭐⭐⭐⭐

“I had suffered debilitating symptoms since childhood which I now barely suffer at all.”
Emma · Google Review ⭐⭐⭐⭐⭐

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As Seen In

Articles that explore gut health, the nervous system, and the deeper patterns behind ongoing symptoms can be found here.

Quoted in The Independent
I was recently quoted in The Independent contributing to wider conversations on gut health, highlighting the limitations of product-led approaches and the role of stress and nervous system state in digestion.
Read the article →
Quoted in The Times
I was recently quoted in The Times, contributing to an evidence-based feature exploring which of honey's many health claims stand up to scrutiny.
Read the article →
Invited Contributor to Life Science Daily News
I was invited to contribute to Life Science Daily News, writing about the challenge of translating microbiome research into meaningful patient care.
Read the article →

Work With Me

Press - for articles, interviews, and professional collaboration.

Mind-Body-Biome - to explore my signature 1:1 method for lasting gut health.

Mentorship - for practitioners who want to become more attuned, embodied, and effective in their work.

Please Note - My work is intentionally 1:1 and not offered in corporate or group formats.