Photo of Dr Megan Rossi in a silk top, looking at the camera with a neutral background

Why Megan started The Gut Health Doctor

Dr Megan Rossi (PhD, RD) founded The Gut Health Doctor® in 2017 with a clear mission – to empower people everywhere to take control of their health, underpinned by the latest scientific research. As a scientist who was also seeing patients in clinic, she saw firsthand how groundbreaking research wasn’t reaching the public, while misinformation was spreading faster than the evidence.

To address this, Megan set up The Gut Health Clinic in 2019, bringing together a team of specialist gut dietitians, offering both virtual and in-person consultations in London and Bristol. She also created Bio&Me, the multi-award-winning food brand that makes it deliciously simple to bring the science of gut health to your plate.

Then came SMART STRAINS, targeted live bacteria matched to what you actually need. Unlike much of the outdated supplement market, SMART STRAINS are designed to deliver the right strain, at the right time, in the right way, with each formulation backed by rigorous science and recommendations from global health bodies.

Photo of Dr Megan Rossi being presented with the British Nutrition Foundation award by HRH Princess Anne

Presented with the British Nutrition Foundation award by HRH Princess Anne. For those wondering about the bandage, Dr Megan Rossi was involved in a kombucha-making incident resulting in 19 stitches.

Leading the way in gut research

Seventeen years of research, and the same questions coming back time and again in clinic. That’s what led Megan to start The Gut Health Doctor.

From achieving a first-class honours in Nutrition and Dietetics to completing an award-winning PhD in gut health, Megan has dedicated her career to understanding the vital link between the gut and overall health. Since 2015, she has served as a leading Research Fellow at King’s College London, investigating nutrition-based therapies in gut health, including prebiotics and probiotics, medical diets, plant-based diversity, food additives, and more. To date, she has secured over £3 million in research funding and published more than 50 scientific papers in international, peer-reviewed journals.

Megan’s work has also been recognised with prestigious awards. In 2017, she received the British Medical Journal prize, and she was presented with the British Nutrition Foundation award by HRH Princess Anne.

“I don’t have all the answers, and gut health science moves fast. What I can promise is that I’ll always tell you when the evidence isn’t there yet.”
Megan

Megan Rossi's latest publications

Megan Rossi receiving 'Young Australian of the Year Living in the UK', alongside qualifying as a dietitian and her grandmother who died of bowel cancer.

A lifelong commitment to the gut

Megan grew up on a farm in rural Australia, shaped by the influence of her Italian heritage and science-teaching mother. She cherished her wholesome, hands-on upbringing by her mother and grandparents, spending her days eating home-grown fruit and vegetables and learning the value of real, nourishing food.

But her first conscious memory of the gut wasn’t a happy one. In the final year of her dietetics degree, Megan’s beloved grandmother passed away from bowel cancer. This loss, her experience working with patients in hospitals to Olympic athletes, and the growing awareness of the crucial role of nutrition and the gut microbiome, inspired her to dedicate her career to pioneering research on the power of the gut.

In 2015, Megan moved to the UK to continue her gut health research. Her work and influence were recognised in 2020 when she received the Young Australian of the Year (living in the UK) Award from the Australian High Commissioner.

Today, Megan not only shares the latest gut health science and makes it practical for everyday life, but as a mum of three, she is raising the next generation of foodies.

Dr Megan Rossi at her desk consulting a client

Establishing a clinic to offer personalised support

Megan spent years seeing patients one-to-one and wanted more people to have access to that level of quality guidance. Frustrated by the abundance of nutrition advice that isn’t evidence-based, she set out to provide the high-quality, science-backed support that people truly deserve.

In 2019, Megan brought together leading dietitians from King’s College London to establish The Gut Health Clinic. Based in London and Bristol, the clinic now supports people with a wide range of nutritional needs, using the latest scientifically proven strategies – from gut issues and food intolerances to weight management, mental health, women’s health, and more.

Learn more

Leading the live bacteria revolution

With an award-winning PhD in probiotics and frustrated by the gap between cutting-edge science and the misleading products on the market – which meant she couldn’t recommend evidence-backed live bacteria supplements to her clients (because the formulations didn’t exist on the shelves!), despite the growing science – Dr Megan Rossi (PhD, RD, APD) created SMART STRAINS, a revolutionary approach to live bacterial supplements.

The idea that you need a daily live bacteria supplement for ‘general’ gut health sounds appealing, but the science has moved on. Just as you wouldn’t take an iron supplement to treat a vitamin D deficiency, the latest research confirms you need to get specific. SMART STRAINS is designed to give you the right strain, at the right time, in the right way. It’s targeted support that works when you actually need it.

With this range, she is changing how we think about and approach live bacteria supplements, bringing clarity, credibility, and science-led solutions back to this area.

Learn more

^{Megan holds a PhD in gut health and is a research fellow and registered dietitian. She is not a medical doctor.}

Eat Yourself Healthy

Discover Megan Rossi’s (PhD, RD) first book ‘Eat Yourself Healthy’ for science-backed strategies and step-by-step guidance on how to overcome your gut health issues, from constipation and bloating to food intolerances and IBS.

Get your copy See all books

View all articles

Noa's transformation story

For years, I struggled with IBS, managing symptoms through a cautious approach to FODMAPs, but still often feeling bloated and uncomfortable… Reading Dr Megan’s books taught me how to adopt a “FODMAP-lite” approach to my meals, which turned out to be the most suitable way for me to manage my symptoms… The results have been life-changing.

Noa - Augsburg, Germany

View all stories

Why Megan started The Gut Health Doctor

Leading the way in gut research

A lifelong commitment to the gut

Establishing a clinic to offer personalised support

Leading the live bacteria revolution

Eat Yourself Healthy

Related articles

Noa's transformation story

Follow us

Uncovering the ‘gut:everything’ connection

Plant points: how to get 30 a week & why

Are gut health issues stopping you in your tracks?

Noa's transformation story

Follow us