CLINICAL PSYCHONEUROIMMUNOLOGIST & NUTRITIONAL THERAPIST · LONDON
FLEUR BORRELLI · BSc NUT MED · MSc CPNI
Most people have been assessed at the symptom level.
 We look deeper to understand what your body is trying to tell you.
If you are struggling with persistent symptoms, low energy, weight changes, inflammation, digestive problems, hormonal changes, brain fog or simply do not feel like yourself, we look beyond the diagnosis or individual symptom to understand the impact of stress and what could be driving the pattern.Â
60–90 minutes · with Fleur personally · £150 credited toward your programme
Book your initial consultation
DOES THIS SOUND FAMILIAR?
You are ready for a clinical framework that connects the full picture.
You may have tried changing your diet, taking supplements, having tests, or treating individual symptoms, yet never quite reached the point where your health truly shifts. One symptom improves while another appears. Your body seems to be responding to something, but no one has joined the dots.
By exploring the relationship between stress and your immune, endocrine and metabolic systems, I work to uncover the biological pattern beneath your symptoms: what may have started it, what is maintaining it, and what your body may need to move towards better health.
The aim is not simply to manage another symptom. It is to understand your whole picture and find a way forward.
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WHERE TO BEGIN
Choose your path forward.
START HERE · £150
Initial Consultation
A 60–90 minute clinical session that traces the original mechanism behind your symptoms. Your full history heard, your systems assessed, your path forward mapped. The £150 is credited toward your programme if you continue.
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Find out more1:1 PROGRAMMES
Individual Programmes
Three tailored 1:1 programmes; the Metabolic Reset, Gut Reset, and Complete Health Reset. Each programme is built around your specific clinical picture. Whole-system resets rooted in cPNI.
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View programmesGROUP PROGRAMME
In-Sync Reset — Group
An 8-week group programme designed to restore metabolic flexibility, burn fat, regulate hormones, rebuild immune resilience and boost resilience. Rooted in cPNI.
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Join the waiting listTHE CLINICAL APPROACH
Everything in the body is communicating everywhere, all of the time
Your nervous system talks to your immune system. Your immune system talks to your metabolism. Your metabolism talks to your brain. And the insula integrates signals from all of them simultaneously ; your history, your environment, and your internal state. This is anatomy and physiology.
Read about the cPNI framework →Â
WHAT CLIENTS SAY:
The dots, finally joined.
Working with Fleur opened my eyes to the intricate connections between my mind, immune system, and overall wellbeing. I found greater resilience, felt more empowered managing stress, and noticed real improvements in both physical health and emotional balance.
Clive, Birmingham
The sessions became a weekly catch-up where I could explore not just symptoms, but the root causes of imbalance. These insights didn't just change how I felt — they reshaped how I see the future.
Sam, Darlington
Your approach was more advanced and included cutting-edge research but delivered in an easy-to-understand way. Your unique combination of professional excellence, warmth, and real-world practicality sets you apart.
Lindsay, Jersey
Fleur has completely changed the way I look at food and think about my movement. I lost weight around my waist, face, and thighs. My skin glows more, my nails are stronger, and my sleep has improved.
Sophie, London
When I first saw Fleur I was in so much pain I could hardly move or sleep. Around a year later I had no symptoms of Rheumatoid Arthritis at all — no swelling and no pain. I feel very lucky and blessed to have found her.
Adina, London
 It felt like I had kick-started my system — woken everything up. I was surprised I wasn't starving by the evening. Something genuinely shifted.
Vanessa, Dorset
Discover the Book That Started It All
Co-authored with actress Glynis Barber, The In-Sync Diet introduces an evolutionary approach to fat burn, hormonal balance, energy, and long-term wellbeing.
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Download The In-Sync Diet FREE
READY TO BEGIN
You have been searching for answers long enough.
The next step is one that finally connects your history, your physiology, and your symptoms in a way that makes sense.
Book your initial consultation