Megan Rossi

Megan Rossi
Megan Rossi
Born	October 10, 1988 (age 38); Cairns, Australia
Occupation(s)	Dietitian, nutritionist, author, researcher
Years active	2009–present
Known for	Expertise in gut health and microbiome; founder of The Gut Health Doctor and The Gut Health Clinic; co-founder of Bio&Me; author of gut health books

Adapted from the English Wikipedia article Megan Rossi, available under CC BY-SA 4.0Updated 11 August 2025

Megan Rossi (born 10 October 1988) is a dietitian, nutritionist, and author with expertise in the microbiome. She earned her PhD in gut health, receiving the Dean's Award for Outstanding Research Higher Degree, placing her among the top 5% of her cohort.

Rossi is the founder of The Gut Health Doctor website and The Gut Health Clinic. In 2019, she co-established Bio&Me,<ref> a UK-based food brand.<ref> In 2025, she introduced SMART STRAINS, a clinically validated live bacteria product line featuring clean labelling.<ref> Additionally, she promotes and researches plant-based nutrition.<ref>

Early life and education

Raised as one of three siblings by her single mother, who was a science educator, Rossi grew up on a farm near Cairns in regional Australia.

She pursued Dietetics at Queensland University of Technology from 2006 to 2009, graduating with first-class honours. Following this, Rossi worked as a dietitian at Princess Alexandra Hospital, Brisbane while engaging in research activities. In 2014, she completed her doctoral studies in gut health at the University of Queensland and served as the nutritionist for Australia’s Olympic Synchronised Swimming team.

In 2015, Rossi moved to London, where she currently resides with her husband Thomas and their sons Archie and Cooper.

Research fellow

At King's College London, Rossi holds a Research Fellow position concentrating on nutrition-based interventions for gut health. Her work encompasses areas such as prebiotics, probiotics, dietary fibres, diversity in plant-based diets, the low-FODMAP diet, and the impact of food additives. She has authored over 50 articles published in international peer-reviewed journals.

The Gut Health Doctor

In 2017, Rossi established The Gut Health Doctor (@theguthealthdoctor), which has grown to over 600,000 followers by linking gut health to wider conditions including mental health, heart disease, kidney disease, and various skin conditions.

The Gut Health Clinic

Rossi created The Gut Health Clinic, where expert dietitians provide treatment for clinical issues such as IBS, IBD, coeliac disease, and other gastrointestinal disorders. The clinic also offers support for weight management, diabetes care, cancer-related nutrition, and women's health concerns.

Bio&Me

In 2019, Rossi co-founded Bio&Me, a food company centered on promoting gut health. This brand was recognized as UK Future Brand of the Year 2021, earned several Great Taste Awards, and attracted investment from Harry Kane. Bio&Me attained B Corp certification in 2022, demonstrating its dedication to social and environmental responsibility.

SMART STRAINS

Rossi launched SMART STRAINS in 2025—a range of live bacteria supplements with clinical validation that are endorsed by international health authorities.

Awards

2017 British Medical Journal Open Gastroenterology prize for Best Clinical Science Abstract
2017 British Nutrition Foundation Drummond Pump Priming Award, presented by Princess Anne
2019 Business Insider's Top 100 Coolest People in Food & Drink
2020 Young Australian Achiever of the Year in the UK for scientific contributions and public education
2023 LDC Top 50 Most Ambitious Business Leaders
2024 Hurun UK Under 35s Young Entrepreneurs to Watch

Plant-based nutrition

Rossi outlines several types of plant-focused diets, such as veganism, lacto-vegetarianism, lacto-ovo vegetarianism, pescetarianism, and flexitarianism. She clarifies that adopting a plant-based diet does not necessarily mean following a strict vegan regimen; it can include occasional consumption of animal products while primarily emphasizing plant-derived foods. Rather than endorsing exclusively vegan or vegetarian lifestyles, Rossi encourages increasing the intake of plants without completely removing certain food categories, recognizing that some animal-derived items can help address nutritional gaps. She also expresses concern about highly processed plant-based alternatives like vegan cheeses, citing their diminished nutrient value.

Rossi presents a plant-centric diet as a sustainable, whole-foods strategy focused on whole grains, fruits, vegetables, legumes, nuts, and seeds. She highlights that maintaining gut health requires balance and variety in plant consumption, advising the inclusion of 30 different plant foods each week. Although the 5 A Day recommendation serves as a helpful starting point, Rossi considers it inadequate for achieving optimal gut microbial diversity.

Eat Yourself Healthy (Love Your Gut)

Rossi’s first book, titled Eat Yourself Healthy in the UK, Australia, and Europe and Love Your Gut in the US and Canada, was released in September 2019. It provides recipes and advice for managing IBS and bloating, identifying food intolerances, and explores connections between digestive health, sleep quality, and physical activity. The book is dedicated to her late sister Justine and achieved Sunday Times bestseller status; it has also been translated into four languages.

Eat More, Live Well

Published in 2021 by Penguin Books, Rossi’s Eat More, Live Well became a Sunday Times bestseller. The book advocates consuming 30 distinct plant-based foods weekly. Editors note that although the recipes focus on plants, they incorporate meat, dairy, and eggs to promote a varied diet. Rossi’s enthusiasm for food shines throughout the publication.

TV

Rossi frequently hosts a segment on gut health for ITV's This Morning.
She appeared on BBC One’s 'Dr Xand's Con or Cure in both 2023 and 2024.
Additional television appearances include Lorraine, BBC Morning Live, ITV Tonight (2020), Sky News, and ITV's What You Need To Know.

News Media

Between 2022 and 2023, Rossi contributed a weekly column to The Daily Mail.
She is featured on BBC Radio 4’s Inside Science and the Chris Evans Breakfast Show broadcast on Virgin Radio.
Her writing appears in publications such as the Guardian, Telegraph, Marie Claire, and Stylist magazine.
Rossi regularly delivers keynote speeches at events including New Scientist Live and various health-related conferences.

Podcasts

Rossi has been a guest on podcasts like Stompcast, The Power Hour, and The Doctor’s Kitchen where she discusses nutrition and gut wellness.
Additionally, she has appeared on TED Health, Feel Better Live More, The Mid•Point, and Slo Mo to share expertise about digestive health and the gut-brain relationship.

Selected publications

Eat Yourself Healthy: A Simple Guide to Enhancing Health and Happiness from Within (Penguin Life, 2019)
Love Your Gut: Boost Digestive Wellness and Improve Overall Health from the Inside Out (The Experiment, 2021)
Eat More, Live Well: Savor Your Favourite Foods While Enhancing Gut Health with The Diversity Diet (Penguin Life, 2021)
How to Eat More Plants: Improve Your Health by Incorporating 30 Plant-Based Foods Weekly (And Why It’s More Achievable Than You Think) (The Experiment, 2022)

External links

The Gut Health Clinic