Rhiannon Lambert: The Journey of the UK’s Leading Nutritionist, Author, and Wellness Pioneer

Rhiannon Lambert is a renowned UK Registered Nutritionist (RNutr), best-selling author, and founder of the acclaimed Rhitrition Clinic on Harley Street, London. With over a decade of experience, she has become a leading voice in evidence-based nutrition, promoting a balanced, non-restrictive approach to food and well-being. Her mission is simple yet profound: to empower individuals to build a positive relationship with food and their bodies through science-led education and compassion.

Rhiannon’s influence extends beyond clinical nutrition—she is a three-time Sunday Times Bestselling Author, podcast host of The Wellness Scoop, and founder of Rhitrition+, a supplement brand rooted in scientific integrity.

Early Life and Age of Rhiannon Lambert

Born in 1989 in the United Kingdom, Rhiannon Lambert is currently 36 years old (as of 2025). From an early age, she displayed a deep curiosity about health, performance, and the psychology behind eating habits. Before venturing into nutrition, Rhiannon was classically trained in Voice and Opera at the Royal Academy of Music, reflecting her artistic versatility and discipline.

Her transition from music to nutrition was inspired by her fascination with how food influences both body and mind. This journey led her to pursue advanced studies in nutrition, which ultimately shaped her career and philosophy in evidence-based wellness.

Education and Professional Qualifications

Rhiannon Lambert’s academic background reflects her commitment to excellence and scientific rigour. She graduated with First-Class Honours in Nutrition & Health (BSc) from the University of Roehampton, followed by a Master’s Degree (MSc) in Obesity, Risks and Prevention from the same institution.

Further enhancing her expertise, she obtained multiple specialist diplomas, including:

• Master Practitioner in Eating Disorders and Obesity, accredited by the British Psychological Society (BPS).

• Diploma in Sports Nutrition and Pre- and Post-Natal Nutrition from Monash University (2019).

• Advanced Diploma in Nutritional Approaches to Eating Disorders and Eating Distress from the Institute for Optimum Nutrition.

Rhiannon is registered with the Association for Nutrition (AfN), the UK’s regulatory body ensuring evidence-based and ethical practice in the nutrition profession.

The Birth of Rhitrition Clinic – A Science-Led Approach to Well-being

In 2016, Rhiannon Lambert founded Rhitrition, a pioneering nutrition clinic located on Harley Street, London’s prestigious health and wellness hub. The clinic provides one-to-one consultations focusing on weight management, sports nutrition, gut health, eating disorders, and maternal nutrition.

Her clinic operates with a multidisciplinary team of Registered Nutritionists, Dietitians, and Chartered Psychologists, reflecting her belief that nutrition is intertwined with both physical and psychological health. Rhiannon’s evidence-led approach rejects fad diets and instead promotes personalised, sustainable lifestyle changes based on scientific research.

Under her leadership, Rhitrition has grown into one of the UK’s most respected private nutrition consultancies, helping thousands transform their relationship with food.

The Launch of Rhitrition+ – Science in Supplement Form

Expanding her wellness empire, Rhiannon Lambert launched Rhitrition+ in 2022, a supplement brand created to bridge the nutritional gaps in modern diets. Each product in the Rhitrition+ line is formulated with precision, ensuring clinical-grade quality and transparency.

The brand embodies Rhiannon’s philosophy: nutrition should enhance life, not restrict it. Her products aim to provide essential vitamins and minerals supported by scientific evidence, empowering individuals to thrive amidst the demands of modern living.

Career Highlights and Collaborations

Rhiannon’s career spans consulting, media, publishing, and public education. She has worked as a consultant for leading global brands, including Deliveroo, Wagamama, Alpro, Yeo Valley, Little Freddie, Microsoft, Samsung, and Four Seasons Hotels & Resorts. Through these collaborations, she has helped redefine menus, improve product nutrition, and shape corporate wellness strategies.

Her engaging communication style and science-driven ethos have earned her a trusted voice in the UK’s health industry. Rhiannon frequently appears on TV, radio, and podcasts, debunking nutrition myths and promoting evidence-based dietary understanding.

Books by Rhiannon Lambert – From Page to Plate

Rhiannon is a prolific author, having written six books that combine nutritional science with practical guidance for everyday life. Her work has resonated with readers worldwide, making her a three-time Sunday Times Bestselling Author.

Her publications include:

1. Re-Nourish: A Simple Way to Eat Well (2017) – Her debut book and a bestseller that lays the foundation for intuitive, balanced eating.

2. Top Of Your Game: Eating For Mind & Body (2019) – Co-written with snooker legend Ronnie O’Sullivan, this book explores the link between nutrition, focus, and mental performance.

3. The Science of Nutrition (2021) – A comprehensive, visually rich guide demystifying food myths through science.

4. Deliciously Healthy Pregnancy (2022) – A practical guide for expecting mothers focusing on evidence-based prenatal nutrition.

5. The Science of Plant-Based Nutrition (2024) – Explores the power of plant-rich diets for longevity and vitality.

6. The Unprocessed Plate (2025) – Her latest release focusing on simple, whole-food-based recipes to reduce ultra-processed food intake.

These books have positioned Rhiannon as one of the most credible and accessible nutrition educators in the UK.

Podcasts and Media Presence: The Wellness Scoop

Rhiannon Lambert is also a podcast co-host of The Wellness Scoop, an evolution of her earlier hit series Food For Thought, which has achieved over five million downloads since its launch in 2018.

Her podcast features interviews with leading scientists, dietitians, and health experts, offering listeners practical advice on achieving physical and emotional well-being. Through these conversations, Rhiannon continues her mission to dismantle misinformation and promote nutritional literacy among the public.

Personal Life and Family

Beyond her professional achievements, Rhiannon Lambert leads a family life grounded in the same balance and well-being she advocates professionally. She is married to Billy Evans, and together they are raising two young children, both under the age of four, as confirmed by her recent posts on her official @rhitrition Instagram account.

Rhiannon occasionally shares glimpses of family life with her audience — from joyful holidays to moments at home — but remains protective of her children’s privacy, never revealing personal details such as names or faces. Her captions often reflect warmth, gratitude, and mindfulness, such as her recent reflection on family time at Beaverbrook Hotel & Spa, where she wrote about “magical moments with my ❤️’s” and how “spa time becomes swim time when you have two under 4.”

Motherhood has deepened Rhiannon’s dedication to family nutrition and early childhood well-being, themes she explores in her work and public education. She continues to balance her roles as a Registered Nutritionist, business founder, and mother, embodying her own philosophy that true health is achieved when science, self-care, and family coexist in harmony.

Her humility and authenticity, both online and offline, have helped her build a loyal following of nearly half a million on Instagram, where she shares honest insights about food, body image, and mental health.

Professional Affiliations and Accreditations

• Registered Nutritionist (RNutr) – Association for Nutrition

• Master Practitioner in Eating Disorders – British Psychological Society

• Level 3 Personal Trainer – UK accredited

• Freedom Food Alliance Member – promoting ethical and sustainable nutrition

• Corporate Consultant – Microsoft, Deliveroo, Alpro, Coty, and others

Her multifaceted expertise makes her one of the UK’s most qualified professionals in nutrition, bridging clinical knowledge with relatable communication.

Rhiannon Lambert’s Philosophy on Nutrition and Health

At the heart of Rhiannon’s philosophy is the belief that food should be a source of joy, not guilt. She opposes restrictive diets, detox fads, and pseudoscientific trends, instead promoting evidence-based, inclusive nutrition that supports both physical and mental health.

Her core principles include:

• Focusing on whole, minimally processed foods.

• Encouraging plant-rich diets without forcing veganism.

• Supporting mindful eating and positive body image.

• Integrating science and empathy in every dietary recommendation.

Conclusion: The Legacy of Rhiannon Lambert

Rhiannon Lambert stands as one of the UK’s most influential voices in nutrition and wellness. From her clinic on Harley Street to her bestselling books and globally followed podcast, she continues to shape the modern understanding of food and health.

Her unwavering commitment to science, authenticity, and compassion has transformed the lives of thousands—proving that true nourishment goes beyond calories and macros; it begins with understanding, empathy, and balance.

At just 36, Rhiannon Lambert’s work has already redefined the landscape of British nutrition, inspiring a generation to eat better, live healthier, and embrace well-being with evidence and empowerment.

NewsDip.co.uk