Discover the Book That Started It All
The In-Sync Diet, co-authored with actress Glynis Barber, introduced an evolutionary approach to fat burn, energy, and long-term wellbeing.
Thousands have already found their path to health with these strategies—now it’s your turn.
📖 Available in paperback on Amazon.
Get Your Copy of The In-Sync Diet
Ready for Real Change?
Choose Your Path Forward:
Personal Consulting with Fleur
One-to-one support combining psycho-neuro-immunology with practical daily strategies tailored to you. For women ready for clarity, accountability, and a deeply personal reset.
In-Sync Reset: 8-Week Programme
8 week reset, a science-backed programme to reset your metabolism and burn fat, regulate your hormones and boost resilience and longevity. Rooted in psychoneuroimmunology, this is a group-based experience for women. A whole new way of life is possible.
Working with you opened my eyes to the intricate connections between my mind, immune system, and overall wellbeing. I found myself gaining greater resilience, feeling more empowered in managing stress, and noticing improvements in both physical health and emotional balance. Your holistic approach helped me understand not only the science behind these links but also how to practically integrate healing strategies into my daily life – and not just about leafy greens!!
The sessions became a ‘weekly catch up’ where I could explore not just symptoms, but the root causes of imbalance. I discovered how simple shifts — like conscious breathing, mindful movement etc —could ripple outward, transforming my body’s response to everyday life. I have to say these insights didn’t just change how I felt; they reshaped how I see the future.
I am now becoming much more aware of when I am truly hungry versus emotional eating.
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I tried the day of fasting and actually I think it was really interesting to find how your body adapts and I was surprised that I wasn't starving or really thirsty by the evening. It felt like I'd kick-started my system - woken everything up!
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As you know, I am really interested in health and nutrition and have many books etc– and of course there is so much noise out there! However, your approach was more advanced and included new and 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. The personalized support, encouragement, and trust you built have made an enormous difference in my journey. I’m confident that others would find the same empowerment, clarity, and hope that I discovered in your care.
Meet Fleur Borrelli
Clinical Psycho-Neuro-Immunologist | Nutritional Therapist | Author of The In-Sync Diet
Have you ever had a single moment that changed everything?
For me, it was June 1982, in a quiet Wiltshire village. My father, the local GP, wise and deeply respected, was my role model. That summer, my family life shifted dramatically, and years later, a discovery about my father’s silent trauma during World War II revealed something profound: our unspoken experiences shape our health more than we realise.
That realisation led me to a different path, clinical psycho-neuro-immunology. For over 20 years, I’ve helped women reconnect with their bodies, calm their nervous systems, and build resilience using an integrative, science-led approach.
Because you deserve more than symptom management.You deserve to feel energised, focused, and have a sense of wellbeing.
Take the first step toward feeling In-Sync again.
Your reset starts here.
