Photo of Dr Megan Rossi, founder of The Gut Health Doctor, sitting in a lab looking and using a test tube

The go-to gut health scientist and nutrition expert

Dr Megan Rossi (PhD, RD, APD), an award-winning gut health scientist and registered dietitian and nutritionist, founded The Gut Health Doctor® to help people take control of their own health.

She translates research from her lab and beyond into practical tools people can use. Free articles and recipes, her books, masterclasses, and specialist dietitian support through The Gut Health Clinic. She created Bio&Me to make genuinely gut-nourishing food easy to access and formulated SMART STRAINS so people could get the right live bacteria at the right time.

“I’m here to be honest with you about what the science actually says. The good news is that most of what makes a difference is simpler than you’d think.”

Dr Megan Rossi

As seen on

Free 10 step starter guide to good gut health

Everything you need to get started, in one download.

  • The four principles behind good gut health, in plain English
  • Plant points, and why 30 a week is the number that matters
  • 10 practical steps, from fibre and sleep to stress and supplements
  • Four gut-loving recipes and a goal-setting worksheet

Over 100,000 people have already joined. Learn how to support your gut with science-backed advice.