How Dr. Megan Rossi is Changing the Way We Think About Gut Health

Dr Megan Rossi, founder of The Gut Health Doctor, is one of the most influential international gut health specialists. As a registered dietitian and nutritionist for the last 15 years, she has an award-winning PhD in probiotics, which was recognised for its contribution to science, receiving the Dean’s Award for outstanding research. Megan has also published multiple Sunday Times best-selling books: Eat Yourself Healthy (UK, Aus & Europe), Love Your Gut (US & Canada), Eat More, Live Well (UK, Aus & Europe) and How To Eat More Plants (US & Canada). 

As a leading Research Fellow at King’s College London, Megan is currently investigating nutrition-based therapies in gut health, receiving over £3 million in research funding and publishing over 50 scientific papers to date.

Frustrated that her findings weren’t reaching the public and seeing fad and potentially dangerous misinformation on gut health being spread, Megan took to social media to share credible, evidence-based advice and has built an engaged community of 600K.

In 2019, Megan founded The Gut Health Clinic, leading a team of gut-specialist dietitians with virtual and face-to-face clinics in London and Manchester. She has also created the multi-award-winning gut health food brand Bio&Me to bridge the gap between science and the food industry. More recently, in 2025, she founded SMART STRAINS, a family of four clinically proven, condition-specific live bacteria products. Backed by the latest science, SMART STRAINS challenges the current - and outdated - market offering and promises consumers only the right strain, at the right time, in the right way.

Megan writes regularly for popular media publications, including The Guardian, The Daily Telegraph, Women’s Health and Stylist. She regularly appears on the UK’s most loved daytime TV show, This Morning, and BBC Radio 4.