Olianna Gourli
Every professional displayed on Nutritionist Resource has been independently verified by our team to ensure they have suitable credentials to practise.
This professional is available for new clients.
This professional is available for new clients.
About me
Meet Olianna
Naturopath | Nutritional Therapist | Functional Medicine Practitioner
Root-cause focused, science-backed, and deeply personal.
My journey started in my teens, after a gut infection during a trip to Asia left me with severe bloating, fatigue, and hormonal chaos. Ironically, while studying medicine at university, my own health was falling apart. I saw doctor after doctor, was put on multiple medications, and was often told, “It’s all in your head.” But I knew it wasn’t.
Everything changed when I worked 1:1 with a Nutritional Therapist. I finally felt seen—and I began to heal. That experience led me to study Nutritional Therapy and Functional Medicine myself.
Years later, I was diagnosed with P.C.O.S. and told I might struggle to conceive. But when I was ready to start a family, I became pregnant the first time we tried. My pregnancy and postpartum experience were smooth and joyful—a full-circle moment that confirmed the power of this work.
Now, I feel better than I ever imagined I could—and I’m here to help you do the same. My mission is simple: to help you get well faster, with less confusion and more clarity. I combine science, empathy, and root-cause thinking to give you the care I once needed but couldn’t find.
What I Help With
Hormonal imbalances (P.C.O.S., pregnancy, PMS, fertility)
Gut health (bloating, I.B.S, SIBO, food intolerances)
Fatigue, burnout & poor sleep
Autoimmune conditions & chronic pain
Weight, cravings & blood sugar balance
How I Work
1:1 Consultations
Get a 60–90 min deep-dive into your health with a personalised nutrition and lifestyle plan, optional testing, and targeted supplement guidance.
Functional Testing
Specialised tests to uncover root causes—gut, hormones, nutrients, toxic load, and more.
Support Beyond the Session
Your personalised plan includes meal ideas, resources, supplement discounts, and ongoing support to help you stay on track.
Why Work With Me?
✔ Qualified in Naturopathy, Nutrition, Functional Medicine
✔ Scientific background & evidence-based approach
✔ Personalised care—no one-size-fits-all plans
✔ Practical, natural solutions that work
Let’s Get You Feeling Like You Again
Start with a free discovery call or book your initial consultation today.
Training, qualifications & experience
- BSc (Hons) Biomedical Sciences - University College London (UCL), Dean's List for Academic Excellence
- Dip Energetic Holistic Nutrition - NHS, Athens, Distinction
- Dip Nutritional Therapy - College of Naturopathic Medicine, London
- Dip Naturopathy - College of Naturopathic Medicine, London
- Award for Overall Academic & Clinic Results (1st in class)
- Certified Functional Medicine Practitioner - Institute of Functional Medicine (USA)
- PhD candidate in Functional Medicine & Human Nutrition
- Reiki Level 1 & 2
Member organisations
The CNHC encompasses many types of alternative therapy, including massage, aromatherapy and nutrition.
In order to be admitted to the register a practitioner must have studied to the National Occupational Standards for that profession/discipline, or have reached the equivalent of the National Occupational Standards through other relevant training or at least three years of experience and been assessed by their peers.
A practitioner must also have professional insurance and agree to abide by the CNHC Code of Conduct, Performance and Ethics.
The British Association for Applied Nutrition and Nutritional Therapy is the professional body for Nutritional Therapists. There are different BANT membership classes, including Full Member, Fellow Member and Student Member. All BANT practitioners must have met the required standards of training, be fully insured and adhere to the BANT Code of Ethics and Practice.
Accredited register membership
The Accredited Register Scheme was set up in 2013 by the Department of Health (DoH) as a way to recognise organisations that hold voluntary registers which meet certain standards. These standards are set by the Professional Standards Authority (PSA).
This therapist has indicated that they belong to an Accredited Register.
Nutrition topics
info Information about health conditions (*)
Nutritional therapy can help enhance the well-being of individuals diagnosed with serious medical conditions, but should not take the place of medical treatment and advice. If you have been diagnosed with - or suspect you may have - any of these conditions, please speak to your doctor before starting nutritional therapy or making any major changes to your diet or lifestyle.
Photos & videos
Fees
£80.00 - £290.00
Free initial telephone session
Additional information
Services
- 1-on-1 Initial Nutritional & Lifestyle Consultation: £290
(incl. a 30-page personalised plan, educational handouts & ongoing/e-mail support)
- Follow-up (Full Plan Revision): £195
Package
3 sessions: £590
All services are now held online.
Free 15-minute chat pre-consultation available, to establish whether Naturopathic & Functional Medicine is the right route for you.
When I work
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Mon-Fri: 8.00 am - 5 pm
Further information
Online / telephone consultations (Zoom, Skype, What's App, Viber, Teams, Messenger, FaceTime, Swandoola, Instagram)
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