Fleur Borrelli : Psycho-Neuro-Immunologist & Nutritional Therapist London

 I am one of a small number of clinical psycho-neuro-immunologists (cPNI) in the UK, and I help women restore their metabolism, reduce inflammation, and reconnect with their biology using a science-led, whole-person approach.

My background is in Nutritional Medicine, and for over 20 years I’ve worked with clients experiencing autoimmune conditions, digestive disorders, chronic fatigue, anxiety, depression, hormonal imbalance, and more. But unlike standard nutritional therapy, the lens I use is grounded in cPNI, an integrative medical discipline that explores how our immune system, nervous system, hormones, and behaviours interact.

If you have ever felt like no one is truly connecting the dots in your health story, you are in the right place.

My work is built around metabolic and nervous system flexibility, which allows the body to adapt, repair, and thrive. Whether you’re struggling with energy crashes, stubborn inflammation, or emotional stress that is showing in the body, I help you reset through tailored interventions that consider your full medical history.

I also co-authored The In-Sync Diet, a book that brought evolutionary strategies to the modern lifestyle, and I now lead the In-Sync Reset, a 6-week group programme designed to guide women through a powerful metabolic and nervous system transformation.

You’ll find links below to book an initial consultation, join the next In-Sync Reset programme, or download one of my free resources to get started. I look forward to helping you reconnect with your body and build true resilience.