The Happy Tummy Co.

The gut is our largest sensory organ. Everything felt there goes on to have consequences for our health.

Food is just one part of the microbiome story, but as we age, it has the monumental ability to help us back to health & cope better.

Food to start and sustain that journey

New ferment alert for Spring 2026!

Organic Wholegrain Sourdough Ølands Bun with Brazil & Pecan

If you're using our happy tummy loaf to support your digestive health already, then this bun could be a great addition to your diet.

Try a pack

15 minute phone consultation with Karen

€25,00

International Orders

We send our signature ferment - the happy tummy loaf - throughout the EU, North America and the UAE. Gut food to nourish your largest sensory organ. All boxes are sent refrigerated.

Happy Tummy to the EU

Loaves to North America

Loaves to the UAE

SOAKING FUNDAMENTALS FOR DIGESTIVE HEALTH

Let's go!

"Those Transferring food into medicine are the real leaders in health." - London Oncologist on karen's work.

SOAKING FUNDAMENTALS FOR DIGESTIVE HEALTH

€30,00

they say that all press is good press.

Gwyneth Paltrow’s Goop calls it ‘legendary’.

"Part business owner, part baker, part scientist, part educator, she developed the initial recipe for the bread during a feverish and industrious 18 months while living in Hackney in 2012 and 2013 – though the seed was planted many years before that."

"Dave Fanning chats with Karen O' Donoghue about how her bread recipe solves IBS, improves mental wellbeing and possibly your sex life!"

"Karen’s approach, supported by her personal story, is refreshing. She’s a foodie who eats organic and wild meat and raw dairy, has cacao and low-intervention wine every day, and (organic, wholegrain) pasta several times a week."

"Bread activism — it kind of has a ring to it.

And this is the business O’Donoghue is in, swapping prescriptive medicine for a food-led approach to managing and healing one’s own body."

"We are starting to revolutionise our thoughts on bread inspired by the incredible happy tummy co. Her teachings on 'BREAD AS MEDICINE' are inspiring and industry leading."

As seen in

“Karen is a breath of fresh air when it comes to the wellness industry,” he says. “She doesn’t talk any doo-doo and she doesn’t hold back either. She has taught me a lot about crop rotation and soil health, and I believe if we are interested in human nutrition we need to be interested in the quality of the plants we grow, and the health of the soil in which they grow.

"It’s an intriguing space with a beautiful story to tell. The setting is an inconspicuous building in a quiet corner of a Westport carpark, but the learnings found within the walls are nothing short of spectacular."

"Priced around £1 per slice, the Happy Tummy Loaf certainly has a lot to prove."

"Specialising in high fibre, wholegrain breads and bakes, she's lithe and clear-skinned, with an infectious Irish enthusiasm. We met for the first time in January when she hosted a dinner at the Soho-based fermented food pop-up,Kultured. Then, like now, she spoke about the gut with the clear-eyed zeal of someone who's set on converting the world to her way of thinking."

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The gut is our largest sensory organ. Everything felt there goes on to have consequences for our health.

Organic Wholegrain Sourdough Ølands Bun with Brazil & Pecan

International Orders

they say that all press is good press.

Gwyneth Paltrow’s Goop calls it ‘legendary’.

"Part business owner, part baker, part scientist, part educator, she developed the initial recipe for the bread during a feverish and industrious 18 months while living in Hackney in 2012 and 2013 – though the seed was planted many years before that."

"Dave Fanning chats with Karen O' Donoghue about how her bread recipe solves IBS, improves mental wellbeing and possibly your sex life!"

"Karen’s approach, supported by her personal story, is refreshing. She’s a foodie who eats organic and wild meat and raw dairy, has cacao and low-intervention wine every day, and (organic, wholegrain) pasta several times a week."

"Bread activism — it kind of has a ring to it.

And this is the business O’Donoghue is in, swapping prescriptive medicine for a food-led approach to managing and healing one’s own body."

"We are starting to revolutionise our thoughts on bread inspired by the incredible happy tummy co. Her teachings on 'BREAD AS MEDICINE' are inspiring and industry leading."

As seen in

"It’s an intriguing space with a beautiful story to tell. The setting is an inconspicuous building in a quiet corner of a Westport carpark, but the learnings found within the walls are nothing short of spectacular."

"Priced around £1 per slice, the Happy Tummy Loaf certainly has a lot to prove."

"Her zeal would put Jesus to shame!"

Aeropress Coffee

Mind Yourself

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Cart 0

No more products available for purchase

The gut is our largest sensory organ. Everything felt there goes on to have consequences for our health.

Organic Wholegrain Sourdough Ølands Bun with Brazil & Pecan

International Orders

they say that all press is good press.

Gwyneth Paltrow’s Goop calls it ‘legendary’.

"Part business owner, part baker, part scientist, part educator, she developed the initial recipe for the bread during a feverish and industrious 18 months while living in Hackney in 2012 and 2013 – though the seed was planted many years before that."

"Dave Fanning chats with Karen O' Donoghue about how her bread recipe solves IBS, improves mental wellbeing and possibly your sex life!"

"Karen’s approach, supported by her personal story, is refreshing. She’s a foodie who eats organic and wild meat and raw dairy, has cacao and low-intervention wine every day, and (organic, wholegrain) pasta several times a week."

"Bread activism — it kind of has a ring to it.

And this is the business O’Donoghue is in, swapping prescriptive medicine for a food-led approach to managing and healing one’s own body."

"We are starting to revolutionise our thoughts on bread inspired by the incredible happy tummy co. Her teachings on 'BREAD AS MEDICINE' are inspiring and industry leading."

As seen in

"It’s an intriguing space with a beautiful story to tell. The setting is an inconspicuous building in a quiet corner of a Westport carpark, but the learnings found within the walls are nothing short of spectacular."

"Priced around £1 per slice, the Happy Tummy Loaf certainly has a lot to prove."

"Her zeal would put Jesus to shame!"

Aeropress Coffee

Mind Yourself