Marianne Williams BSc Hons, RD, MSc Allergy

“I am passionate about helping my patients to find a solution for their distressing symptoms. Diet is not the answer for everyone but for many it can transform their lives after years of misery.”

Telephone: 01935 804954  Mobile: 07738377288  Email:

Gastroenterology Dietitian Specialising in Irritable Bowel Syndrome (IBS), the Low FODMAP Diet, Gluten Disorders     & Food Allergy/Intolerance

Marianne set up the first NHS primary care dietetic-led gastroenterology clinic in the UK in 2011 specialising in dietary treatment for adults with IBS and gastrointestinal allergy.  The clinic, and the pathway created to help IBS patients in Somerset, has won several awards, has been nationally recognised and was incorporated into the UK NICE Guidelines in June 2015 as a ‘Shared Learning Example’.  Marianne and her gastroenterologist colleague went on to win the ‘2016 NICE Shared Learning Award’ (National Institute for Health & Care Excellence) at the NICE conference in July 2016. Marianne was awarded the prestigious NHS England Allied Health Professional of the Year in 2018 and the Digital Health Outstanding Contribution of the Year in 2019.

Audit figures for the clinic show that over 70% of patients improve with dietary intervention and the Somerset NHS dietetic clinic has been involved in national research with Kings College London.

Marianne specialises in IBS, the Low FODMAP Diet, food allergy, coeliac disease and gluten sensitivity. Those living in Somerset can either obtain an NHS referral via their GP to the NHS dietetic-led gastroenterology clinic, or alternatively Marianne runs a private practice clinic. 

For those private patients unable to attend clinic in-person, Marianne holds remote video consultations. 

The IBS pathway and Marianne have been presented with the following awards:

2019 Winner Digital Health Outstanding Contribution of the Year

2018 Winner of NHS England Allied Health Professional of the Year

2018 Winner of the NHS England & NHS Digital AHP Digital Practice Award

2016 Winner of the National Institute for Health & Care Excellence Award (NICE)

2015 Finalist in the prestigious Health Service Journal Awards

2012 Highly Commended in the UK Care Integration Awards

2012 Winner Service of the Year Nutrition & Health Awards

2012 Winner Dietitian of the Year presented to Marianne for her work in IBS

2012 NHS Recognition Award presented to Marianne for her work in IBS

Corona Virus Update
Hospitals and clinics are now being asked to carry out video-based consultations with patients to reduce the risk of spreading the Corona Virus.  Therefore I will be holding all consultations remotely until the Corona Virus risk has ended.  Patients simply need Wifi or 4G and do not need to download any software and I will email them a secure link.  They can simply use a mobile phone, tablet, laptop or desktop with a webcam.

NHS England Allied Health Professional of the Year 2018