Our Team

Glenville Nutrition in Ireland is now operated as Positive Nutrition.

The team at Positive Nutrition have been working together for over 15 years, running nutrition clinics in Dublin and Galway/ the West of Ireland.

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 20 years, one of Ireland’s most experienced Nutritionists
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

Dr Ciara Wright PhD BSc DipNT mNTOI

Director, Registered Nutritional Therapist, Scientist, Dublin

Nutritional Therapist 11 years
PhD in 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, Long Covid since 2022.

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

Sorcha Molloy BSc (Hons) NT mNTOI mBANT mCNHC

Registered Nutritional Therapist, Galway

Nutritional Therapist 10 years
Clinical Lead Positive Nutrition in the West of Ireland, 8 years
BSc Degree in Nutritional Therapy from the University of Westminster
Professionally trained chef and food expert
Regular contributor to local and national media

Areas of Interest:

Fertility, hormonal issues, osteoporosis, digestion and chronic immune/ autoimmune issues

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

I just wanted to let you know that we had a beautiful baby. Please pass on our sincere thanks, we really appreciate it and obviously the fantastic result we achieved! Thanks to you for your very efficient and kind care during this time.A happy couple from Dublin

Thank you so much for all your help and support. We cannot believe our little miracle is here, I feel like we have won the lotto! I definitely think it was all the changes we made, she is a product of good nutrition!Anon, Carlow

I want to thank you for helping us both this year. Not only has my colitis settled down and I feel much better, you were also a huge part in helping us achieve our ultimate goal of getting pregnant. We will both be eternally grateful for this and thank you sincerely. D&GS, Galway

Compared to my last test 8 months ago the morphology increased from 3% to 35% and my DNA Fragmentation went from 37% to 22%. I could only have achieved these results with your assistance and expertise and would like to thank you for all the guidanceEP, Limerick

Thankfully we dramatically improved the quality of my eggs and were left with one viable embryo which went on to be a successful pregnancy! We are over the moon and thrilled with our little girl. I just wanted to send you an update to let you know and perhaps to give hope to others in a similar position and unsure about whether to try the nutritional approachSinead, Dublin

I feel so alive and energised. The added bonuses are a healthy BMI, normal cholesterol levels, 20kgs lighter and a reduction to my metabolic age by 20 years+. It has been so worth all the time and effort to create this new healthy lifestyle. Thank you for all your excellent advice and encouragement. Your professionalism and attention to detail has brought me to this transformed new state, a new me!Maria, Dublin

Since my first appointment the improvement in my health is amazing. Symptoms of my Inflammatory Bowel Disease have decreased and my energy levels have increased. My hair has become more conditioned and my nails are less brittle. I can honestly recommend a visit to Glenville Nutrition Clinic for a particular illness or as a boost to your general wellbeing E.K, Galway

I FINALLY I lost all the extra pounds I was holding for two years, and my digestion improved MASSIVELY!! Nothing compared to when I first came looking for help!! I WILL ALWAYS BE SO THANKFUL FOR THAT, you wouldn't believe how much good you did for me, I was lost. Fitness Instructor, Dublin

My journey with Glenville Nutrition has made a vast improvement in my health and well-being. You’ve helped me to adopt a completely new approach to food and healthy eating. To date I have lost 26 lbs. In just 7 weeks my cholesterol dropped from 5.8 to 4.4. My arthritic joints have vastly improved and I look forward to my daily walk. Friends and family have complimented me on how well I look!! Again my sincere thanks & appreciation of your excellent blend of professionalism, encouragement and compassion. Kathleen, Galway

I had expected the physical benefits, but the mental and emotional benefits were unexpected and glorious. I cannot recommend Glenville Nutrition highly enough. I think it is fair to say that working with them changed my life. Sometimes you don’t even realise how bad you feel until you start to feel better. That is a gift that you can give yourself. Sincerest thanks for all you did for me.Aisling, Kilkenny

I am so thrilled with having met you at Glenville Nutrition. The advice and supplements I have received is helping me enormously. I am feeling 1000 times better since I first started.Patient, Dublin