Megan Rossi: The Gut Health Doctor Transforming How We Understand Nutrition and Wellbeing
Who Is Dr Megan Rossi?
Dr Megan Rossi—widely known as The Gut Health Doctor—has become one of the most trusted voices in modern nutrition and digestive health. A scientist, registered dietitian, bestselling author, entrepreneur, and media columnist, she represents the new wave of evidence-based health experts who bridge scientific research with practical lifestyle advice.
Based in London, England, Dr Megan Rossi (RD, PhD) is a Research Fellow at King’s College London and the founder of The Gut Health Doctor, SMART STRAINS, and The Gut Health Clinic. She is also the co-founder of Bio&Me, a B Corp-certified food brand bringing gut-friendly products to everyday consumers.
Her mission, perfectly summarised by her signature tagline—“✨ Transform your gut, transform your life”—is to empower people to understand their digestive health as the foundation of their physical and mental wellbeing.
Early Life and Education
The Academic Roots of Megan Rossi
Born on 10 October 1988 in Australia, Megan Rossi’s fascination with health began early. She studied Nutrition and Dietetics at Queensland University of Technology (QUT), graduating with First-Class Honours. Her outstanding performance earned her numerous scholarships and early recognition as a future leader in dietetic research.
Following her undergraduate success, she pursued a Doctor of Philosophy (PhD) at The University of Queensland’s School of Medicine, where her thesis focused on synbiotic therapy in kidney disease. Supervised by Dr Katrina Campbell and Professor David Johnson, her work explored how prebiotics and probiotics could improve gut-kidney interactions—an area that laid the foundation for her lifelong dedication to gut health.
Her research excellence was acknowledged with the Dean’s Award for Outstanding Research Higher Degree Theses and the ANZ Trustees PhD Scholarship in Medical Research.
Career and Research Journey
Early Clinical Experience in Australia
Before moving to the UK, Dr Rossi worked for Queensland Health for five years as a clinical and research dietitian at the Princess Alexandra Hospital. During this period, she developed expertise in managing gastrointestinal and renal conditions, translating research findings into practical care. She also supervised final-year nutrition students at QUT, contributing to the professional development of the next generation of dietitians.
Her work as a nutritionist for Australia’s 2012 Olympic synchronized swimming team showcased her ability to connect elite performance nutrition with scientific rigour.
Research Fellow at King’s College London
In 2015, Megan Rossi relocated to London to join King’s College London as a Research Fellow, where she continues to lead groundbreaking studies on nutrition-based therapies for gut health. Her research spans topics such as:
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Prebiotics and probiotics
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Dietary fibre and microbial diversity
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The low FODMAP diet for irritable bowel syndrome
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Food additives and gut-immune interactions
Her work at King’s has helped transform public understanding of how diet directly influences the gut microbiome—often called our “second brain”.
Building The Gut Health Doctor Brand
The Gut Health Doctor Platform
In 2017, Dr Megan Rossi founded The Gut Health Doctor, a global education platform designed to make complex science understandable and actionable. Through social media, public talks, and collaborations, she helps millions learn how to support their gut health through balanced, evidence-based nutrition.
Today, her Instagram account @TheGutHealthDoctor has over 577,000 followers, while her Twitter handle @TheGutHealthDoc connects her with thousands of health professionals and readers seeking reliable information. Her posts often combine humour, scientific clarity, and compassion—a blend that makes her both relatable and authoritative.
The Gut Health Clinic
By 2019, demand for her expertise led to the creation of The Gut Health Clinic, located in the Harley Street precinct of London. The clinic brings together a team of specialist dietitians—many of whom are PhD researchers at King’s College London—offering personalised dietary interventions for conditions such as:
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Irritable Bowel Syndrome (IBS)
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Functional Constipation
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Inflammatory Bowel Disease (IBD)
Each practitioner blends scientific evidence with empathy, ensuring that patients receive practical, sustainable solutions. The clinic’s success has made it a benchmark for evidence-based dietary care in the UK.
SMART STRAINS and Bio&Me
Dr Rossi’s entrepreneurial drive extended beyond the clinic. She co-founded Bio&Me, a B Corp food company that produces gut-friendly yoghurts, cereals, and snacks formulated with diverse plant ingredients. The brand champions the “30 plants a week” concept—a dietary goal derived from microbiome research showing that fibre diversity is key to gut health.
She also launched SMART STRAINS, a line of scientifically formulated live bacteria supplements, reflecting her commitment to combining clinical evidence with everyday accessibility.
Writing and Media Presence
Bestselling Author
Megan Rossi is also a Sunday Times bestselling author. Her debut book, Eat Yourself Healthy (published in the US as Love Your Gut), became a cornerstone of practical gut-health education. Her follow-up, Eat More, Live Well—also known as How to Eat More Plants—offered an inspiring yet scientifically grounded approach to boosting gut diversity through diet.
Both books have been translated internationally and praised for demystifying digestive health with clarity and compassion.
Columnist and Public Speaker
Between 2022 and 2023, Dr Rossi wrote a weekly “Gut Health Doctor” column for The Mail on Sunday, the UK’s largest-circulation newspaper. Her accessible explanations of emerging gut-health research reached millions of readers, blending academic insight with everyday practicality.
She is also a sought-after keynote speaker at science and wellness events, championing evidence over fad diets. Her appearances across UK television and radio, along with interviews in outlets like The Guardian, BBC Good Food, and Fortune, have solidified her reputation as the nation’s leading authority on gut health.
Awards and Recognition
Throughout her career, Dr Megan Rossi has earned more than a dozen prestigious honours, including:
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Young Australian Achiever of the Year in the UK (2020) — nominated by Australian High Commissioner Hon. George Brandis
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British Nutrition Foundation Drummond Pump Priming Award (2017) — presented by HRH Princess Anne
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BMJ Open Gastroenterology Prize for Best Clinical Science Abstract (2017)
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Dean’s Award for Outstanding PhD Thesis (2016)
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Multiple presentation and innovation awards from international nutrition and medical research congresses
Her leadership extends beyond accolades—she has helped reshape how professionals and the public understand gut-microbiome science.
Personal Life
Dr Megan Rossi lives in London with her husband Thomas, an NHS General Practitioner, and their young family. The couple have two children, Archie and Cooper, and a beloved dog named Pistachio.
In 2024, she openly shared her personal experience of miscarriage, using her platform to advocate for honest conversations around pregnancy loss and women’s health. Her openness resonated deeply with followers, highlighting the compassion and authenticity that underpin her professional message.
Megan Rossi’s Philosophy: Science Over Fads
At the heart of Megan Rossi’s philosophy is a simple yet powerful belief: good gut health is not about exclusion but inclusion. She encourages individuals to celebrate food diversity, enjoy plant-rich diets, and make small, sustainable lifestyle changes. Her teachings reject restrictive trends, promoting instead the joy and empowerment that come from understanding how the body works.
Her mantra—“More science in mainstream media = more healthy and happy guts!”—captures her dedication to improving public health literacy. Whether through her clinic, books, or social platforms, she has built a global community united by curiosity, compassion, and scientific truth.
FAQs
1. How old is Dr Megan Rossi?
Dr Megan Rossi was born on 10 October 1988, which makes her 36 years old as of 2025.
2. Who is Dr Megan Rossi’s husband?
Her husband is Thomas, an NHS General Practitioner (GP) based in London. The couple live in the UK with their two children, Archie and Cooper, and their dog Pistachio.
3. What is The Gut Health Doctor?
The Gut Health Doctor is Dr Megan Rossi’s global education and wellbeing brand, founded in 2017. It provides science-backed resources, recipes and evidence-based advice to help people improve digestive health and overall wellbeing.
4. Where does Dr Megan Rossi work?
She is a Research Fellow at King’s College London, where she investigates nutrition-based therapies for gut health. She also leads The Gut Health Clinic on Harley Street, London, and co-founded the food brand Bio & Me and the supplement line SMART STRAINS.
5. What books has Dr Megan Rossi written?
She is the Sunday Times bestselling author of Eat Yourself Healthy (also titled Love Your Gut in the US) and Eat More, Live Well (also known as How to Eat More Plants). Her books translate cutting-edge gut science into everyday guidance.
Legacy and Impact
In just over a decade, Dr Megan Rossi has evolved from a research dietitian in Brisbane to one of the world’s most influential gut-health experts. Her ability to blend rigorous science with heartfelt communication has inspired millions to view digestive health as central to their wellbeing.
As a scientist, entrepreneur, author, and mother, she embodies a holistic approach to health—where research meets real life. Through The Gut Health Doctor, The Gut Health Clinic, Bio&Me, and SMART STRAINS, she continues to transform how the world understands the intimate connection between the gut and overall wellness.
