Services
Integrative care through every stage of breast cancer
At Mosaic Medical, we understand that breast cancer affects far more than one part of the body – it touches every aspect of health and life. Our Breast Cancer Service supports women at every stage of their journey: from diagnosis and active treatment, through recovery and survivorship, to living well with secondary breast cancer.
We combine the latest advances in functional and integrative medicine with compassionate, evidence-informed care. Our aim is not to replace your oncology team, but to work alongside it – offering the time, depth and personalisation that can be difficult to access in standard NHS pathways.
While NHS oncology focuses on diagnosis and treatment, our approach extends beyond that – helping you understand the factors that may have contributed to your diagnosis, supporting your body through treatment, and empowering you with practical, science-based strategies to promote long-term wellbeing and reduce recurrence risk.
Our philosophy
Every woman’s experience of breast cancer is unique. We take time to understand your full story – your genetics, hormones, metabolism, environment, lifestyle and emotional health – to uncover what may have contributed to your diagnosis and what may now be standing in the way of healing.
By combining medical insight with advanced testing and nutritional science, we help you:
- Support your body through active treatment and optimise your response to conventional therapies
- Manage side effects and protect long-term health
- Rebuild energy and confidence after therapy
- Understand your personal risk of recurrence
- Take evidence-based steps to reduce that risk
Our goal is to empower you with knowledge and clarity, so you can make informed, confident decisions about your ongoing care.
How we work
Your care begins with a comprehensive medical consultation with Dr Amy Walker, Functional Medicine Doctor and Integrative Oncology Practitioner.
Before your appointment, you’ll be asked to complete:
- A detailed medical history questionnaire
- A Medical Symptoms Questionnaire (MSQ) to track progress over time
- A three day food diary
You can also securely upload any blood test results, clinic letters, or imaging reports in advance, allowing Dr Walker to review your case thoroughly before your first appointment.
Where appropriate, we may use advanced functional and genomic testing to gain a deeper understanding of your biology, including:
- Lifecode Gx® - Mosaic partners with Lifecode Gx®, leaders in nutrigenomics testing, applying cuttingedge genomic science to support a preventative, proactive and personalised approach to health. These tests explore key pathways such as methylation, detoxification, hormone metabolism and inflammation.
- DUTCH hormone testing - The Dried Urine Test for Comprehensive Hormones (DUTCH) provides a detailed picture of how your body produces, uses and clears hormones such as oestrogen, progesterone, cortisol and melatonin. This helps us understand how hormonal patterns, stress and metabolism may be influencing your recovery, symptoms, or recurrence risk.
- Stool and microbiome testing (Microba Microbiome Explorer, GI Effects, or Metabolomix) - we select the most appropriate test depending on what we’re looking to explore, whether that’s digestive function, microbial balance, inflammation, or the gut’s role in hormone metabolism and immunity. These insights help us understand how your microbiome may be influencing recovery, side effects, or long-term health.
- Circulating tumour DNA and chemosensitivity testing (Datar Cancer Genetics) - Datar offers advanced molecular tests that provide a more detailed understanding of tumour behaviour. These can include assessments of circulating tumour DNA (ctDNA) to help monitor disease activity, and chemosensitivity testing to explore how individual cancer cells may respond to different therapeutic agents. We use these tests to complement oncology care - helping to inform personalised discussions around treatment options, resistance patterns, and ongoing monitoring.
- Comprehensive blood testing to assess key aspects of your overall health - such as metabolic, thyroid and inflammatory markers - as well as cardiovascular risk factors, which are known to increase following certain breast cancer treatments.
Understanding these broader influences helps us create a plan that supports not just cancer recovery, but also long-term heart, bone and metabolic health.
These insights inform a tailored, evidence-based plan that may include:
- Personalised nutrition - to reduce inflammation, balance hormones and optimise metabolic health
- Lifestyle medicine - addressing sleep, movement, stress resilience and toxin exposure
- Evidence-based supplements - prescribed only where clinically appropriate and oncology-compatible
- Collaborative support - with coordinated medical and nutritional therapy for continuity and safety
Nutritional therapy for breast cancer
All nutritional therapy for breast cancer patients is provided by Registered Nutritional Therapist, Jessica Fonteneau, who specialises in oncology nutrition and functional medicine.
Jess works closely with Dr Walker to translate testing results and medical recommendations into practical, everyday strategies that are realistic, safe and deeply personalised.
A particular area of Jess’s expertise is the Fasting-Mimicking Diet (FMD) – a structured, short-term nutritional programme shown in research to support chemotherapy tolerance, reduce treatment-related side effects and promote cellular repair. Jess has guided many patients safely through FMD protocols tailoring them carefully to each individual’s needs, health status and treatment plan.
Her broader support may include:
- Individualised dietary protocols during and after treatment
- Personalised guidance for fasting-mimicking and metabolic-supportive nutrition
- Help managing symptoms such as fatigue, digestive changes, or joint pain
- Long-term nutrition strategies for metabolic, cardiovascular and recurrence risk reduction
To ensure safety and joined-up care, nutritional therapy is available only for breast cancer patients under the care of Dr Amy Walker.
How we differ
Our service offers:
- Time and depth - extended consultations to explore your whole health picture
- Integration, not replacement - care designed to complement your oncology and NHS team
- Personalisation - every recommendation based on your individual biology, not population averages
- Advanced testing - access to functional, genomic and metabolic assessments not routinely available in the NHS
- Compassion and clarity - we walk alongside you, offering understanding, expertise and practical tools
Further resources
We believe education and community are vital parts of empowering women after a breast cancer diagnosis. You may find these free webinars and resources helpful:
Webinars
Healthy eating after breast cancer
Click to watch
Breast cancer recurrence risk reduction
Click to watch
Handouts
Healthy Eating After Breast Cancer
Practical Guide download
Reducing Recurrence Risk
Practical Guide download
Next Steps
If you are living with breast cancer – whether newly diagnosed, in active treatment, recovering afterwards, or managing secondary disease – we are here to support you.
Your first step is to book an initial medical consultation with Dr Amy Walker.
If nutritional therapy is recommended, you will then be referred to Jessica Fonteneau for ongoing, integrated support.