Dr Megan Rossi

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Dr Megan Rossi

✨ Transform your gut, transform your life
🔬 Gut health expert (scientist, dietitian, nutritionist) I'd love to hear from you!

Boosting the health of your gut is key to transforming your overall health and wellbeing. Whether you're looking to get on top of gut symptoms, lower your risk of chronic disease or simply boost your mood, we're here to inspire and empower everyone to enjoy good gut health - with expert knowledge and practical tools that will make a real difference to your life. I'm Dr Megan Rossi, a Registered Dietitian and Nutritionist with a PhD in Gut Health. I'm also a Research Fellow at King's College London, which means I'm always bringing you the latest and greatest research in gut health, so you can better look after your health from the inside out. Get in touch on here, over email or head over to my website www.theguthealthdoctor.com.

03/11/2026

Holiday mode might have been on but the gut scientist brain refuses to switch off...

Sharing some of my holiday non-negotiables. Although never a “detox” before or a “reset” after. Holidays count as living x

30/10/2026

Anyone else do this with their cocktails?

Also, watch for a glimpse of a mortified Thomas while I quality-check last night’s mojito 😆

27/10/2026

Quick snacks that do a bit more for you…

I’m off to Lanzarote tomorrow and between packing and the usual pre-holiday work chaos, these fibre + protein snacks have been keeping me going.

Sharing in case you’re short on time too x

24/10/2026

The reason I started all of this isn’t something I talk about often. And perhaps unsurprisingly, as a scientist, it’s something I find harder to put into words.

But for the new faces, this is my story. Thank you for being here 💛

20/10/2026

Nothing is too awkward when it comes to gut health, so have a swipe through and see if the question you’d ask me is here!

18/10/2026

Results are in! Here’s what our latest clinical trial at King’s College London found.

Let me know if you’d like a post on how to train those stubborn microbes?

13/10/2026

It’s my birthday, so I’m using it as an excuse to give my younger self some unsolicited advice 😆

Some of these lessons came from science. Others came from building businesses, having three children and realising that knowing the theory doesn’t make you immune to being human.

The science matters. But so does learning how it fits into a real, messy life.

Our thoughts can be a lot sometimes, so I hope a few of these resonate with you too x

11/10/2026

Have you ever heard fibre described as “soluble” or “insoluble”?

Well, here’s why I don’t think those labels are particularly helpful.

Psyllium and inulin are both soluble fibres, but they behave VERY differently in the gut. And that means they can have very different effects on things like toilet habits.

I’ve also pinned a cheat sheet with food sources of inulin in the comments (no supplements needed!).

For the science lovers, here’s the paper my team and I published on the different types of fibre and why we should be thinking beyond soluble vs insoluble: PMID: 33208922

06/10/2026

My free Super Six cheat sheet is in the comments!

Stick the one-pager on your fridge or save it to your phone. The perfect reminder to do a quick 3pm check-in. It’ll become the habit your gut microbes are most grateful for.

Hope you find it helpful x

P.S. If you know any teachers, please send it their way. The dream is for every kid to know the Super Six before high school.

04/10/2026

Some days I’m in my PJs, head deep in scientific papers. Other days it’s a podcast, a talk and an award ceremony.

I’m an extroverted introvert, so the PJ days come more naturally. But we need both: the quiet days where the gut science gets done, and the busy ones where it gets out of the papers and into real life.

Grateful to share both with you.

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http://www.theguthealthdoctor.com/

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