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
- One of Ireland's most experienced Nutritionists with more than 21 years of clinical experience
- Regular media contributor on TV, radio and print. View Heather in the media here
- Published in medical and nutrition journals
- Provides expert support for women and couples with male, female and unexplained infertility and recurrent miscarriage, from preconception and fertility optimisation through to post-partum health and hormonal balance, thyroid health and digestive function including IBS, IBD and SIBO
- Known for her thorough, root-cause approach, Heather combines evidence-based nutrition and functional medicine with practical, sustainable protocols tailored to each client
- Available for appointments online and in clinic
Areas of Interest:
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 13 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, expert in functional medicine tests
- On the editorial board of the Nutritional Medicine Institute
- See current research, clinical projects and collaborations, and publications in medical journals here
- Delivers training modules and lectures to nutritionists and other healthcare practitioners - specialist areas include immunology, gut microbiome, neuroinflammation and histamine intolerance or MCAS
Areas of Interest:
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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
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 10 years
- Certified by Institute for Functional Medicine
- Nutrition Lecturer and Clinic Supervisor with the International Institute of Nutrition & Health
- Qualified Health and Wellness Coach
- Published in nutrition journal
Areas of Interest:
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Fertility, hormonal issues, expert in vaginal microbiome, digestion, osteoporosis
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:
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Disordered eating, digestion, hormonal issues including menopause, PCOS, endometriosis and fibroids.
Personal history of autoimmune thyroid issues
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.