Rhiannon Lambert

Rhiannon Lambert is a highly qualified Registered Nutritionist with a first-class BSc in Nutrition and Health and an MSc in Obesity Risks and Prevention. She is also a Master Practitioner in Psychological Interventions for Eating Disorders. As one of the UK’s leading nutrition experts, Rhiannon has now written seven books, including The Science of Nutrition (2021), The Science of Plant-Based Nutrition (2024), and The Unprocessed Plate (2025), all of which became Sunday Times Bestsellers. Her latest title, The Fibre Formula, unpacks the benefits of fibre, and outlines the growing recognition of the importance of good gut health on alleviating a wide range of common complaints and health conditions.

Rhiannon is the founder of Rhitrition, her evidence-based private clinic, and the creator of Rhitrition+, a supplement brand grounded in scientific research. This year, Rhiannon and Ella Mills launched the popular podcast The Wellness Scoop, which quickly reached number one in the charts. The podcast offers a fresh take on wellness trends, providing listeners with practical advice for achieving a healthier lifestyle.