Clarissa Lenherr

Clarissa Lenherr is a leading London-based nutritionist and the founder of her Harley Street clinic, where she specialises in personalised, results-driven nutrition.

With a decade of clinical experience, she has become a trusted expert for those seeking to optimise their gut health, energy, hormones and long-term wellbeing. Her discreet, science-led approach has attracted an exceptionally diverse client base, from members of the royal family to internationally recognised models, creatives and business leaders, who value her ability to blend evidencebased nutrition with real-life practicality. Clarissa’s expertise is shaped by her own journey with IBS and SIBO, giving her a unique depth of empathy and clinical insight. This lived experience underpins her belief in personalised nutrition and her commitment to helping clients understand and transform the root causes of their symptoms.

Beyond her clinic, Clarissa delivers high-impact workshops and keynotes for global organisations, equipping teams with the tools to enhance their health, productivity and resilience. She has worked with over 250 companies worldwide, including Amazon, Meta, Google, Coca-Cola, Starbucks, The Cabinet Office, NHS and Chanel, and is a regular voice in the media, featured in publications such as The Times, Vogue, The Telegraph, Women’s Health and The Evening Standard. Clarissa is known for combining warmth with expertise, clarity with scientific rigour, and a truly personalised approach with measurable results, making her one of the UK’s most sought-after authorities in modern nutrition.