Meet our
Team


Positive Nutrition is a fully Irish owned nutrition practice which has been trading in Ireland for 20 years. We ran our clinic under the Glenville Nutrition brand for many years, but have now gone back to our Irish roots and are proud to continue to serve our patients both online and in-person.

We are an evidenced based practice, with many scientific collaborations, constantly advancing our approach to health. All of our Nutritional Therapists are fully practicing members of the Nutritional Therapists of Ireland (NTOI).



Heather Leeson BA (Hons) DipNT mNTOI

Founder & Director, Registered Nutritional Therapist, Dublin


  • Nutritional Therapist 21 years, Ireland's most experienced Nutritionist
  • Nutritionist for Virgin Media’s weekend morning show and regular contributor in the media. View Heather in the media here
  • Published in medical and nutrition journals
  • Principle recipe developer and food expert

Areas of Interest:
    Fertility, hormonal issues, digestion
    Personal history of fertility issues

Book Heather
If there was a ‘rate your nutritionist’ I would give Heather 10/10. She’s been so helpful, patient and supportive!  I am delighted with the level of thoroughness and care via the consultation I had with Heather; she is amazing.

Dr Ciara Wright PhD BSc DipNT mNTOI

Director, Registered Nutritional Therapist, Scientist, Dublin


  • Nutritional Therapist 12 years
  • PhD in cellular and molecular biology from the Institute of Immunology in Maynooth University
  • Experience in diagnostic hospital laboratories and a qualification in Medical Laboratory Sciences
  • On the editorial board of the Nutritional Medicine Institute
  • See current research, clinical projects and collaborations, and publications in medical journals here

Areas of Interest:
    Complex conditions such as Long Covid or ME/CFS, autoimmune issues and immune-related fertility issues.
    Personal history of fertility issues. Diagnosed Long Covid 2022 with PEM, POTS, Lyme reactivation and full recovery 2025

Book Ciara
My nutritionist Ciara Wright was without question amazing, I found her so knowledgeable, informative, approachable, and genuinely interested in me and what I was trying to achieve.

Lynne Dalton DipNT mNTOI

Registered Nutritional Therapist, Dublin


  • Nutritional Therapist 8 years
  • Certified by Institute for Functional Medicine
  • Nutrition Lecturer and Student mentor
  • Qualified Health and Wellness Coach
  • Published in nutrition journal

Areas of Interest:
    Fertility, hormonal issues, expert in vaginal microbiome, digestion, osteoporosis

Book Lynne
I appreciate your knowledge, kindness and help so much. I wouldn't hesitate to recommend you, and have done often!  Very professional and well-prepared Nutritionist, no judgment but really constructive attitude. Gold dust!


Laura Baker BA (Hons) DipNT mNTOI

Registered Nutritional Therapist, Dublin


  • Nutritional Therapist 14 years
  • Training Consultant for The Natural Medicine Company
  • Experience as the Director of Studies at the College of Naturopathic Medicine
  • Corporate presenter


Areas of Interest:
    Disordered eating, digestion, hormonal issues including menopause, PCOS, endometriosis and fibroids.
    Personal history of autoimmune thyroid issues


Book Laura
Meeting Laura was a godsend. She was very understanding and was very proactive looking for the root of the problem. She was very supportive and was always there for us if any issues arose. I can't thank her enough for her outstanding work.

Elaine McMahon

Clinic Manager/ Administration


Elaine is at the core of our nutrition team. Always willing to help and known for her professionalism, warmth, and exceptional patient care. She approaches every interaction with kindness and understanding, ensuring that each patient feels supported and well looked after.
Thank you so much for this, you certainly do your job to an impeccable level. I really hope you know that. For many years now you've been there, dealing with my muddles, annoying requests and changing plans, and always with such patience and kindness.