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  • Published: 24 March 2026
  • ISBN: 9781761356735
  • Imprint: Penguin eBooks
  • Format: EBook
  • Pages: 272

The Fibre Factor

A Science-backed Guide to a Healthier Gut, Stronger Heart and Sharper Brain




The ultimate guide to better gut health, brain function and whole-body wellness through the power of fibre.

We didn’t mean to lose fibre – but between industrial food processing and convenience culture, it quietly disappeared from our plates . . . and our bodies have noticed.

Drawing on the latest science and nearly three decades of experience as a nutrition scientist and TV personality, Dr Joanna McMillan brings fibre back into focus – not as a dull dietary box to tick, but as one of the most deliciously powerful tools for health and longevity.

You’ll discover:
- how fibre fuels your gut microbiome, and supports digestion, mental health, immunity, inflammation and detox pathways
- why fibre is vital for heart health, weight balance and blood sugar control
- your dream team of foods, meal ideas and flavour-packed recipes to make eating fibre easy and inviting
- the tools to design your own fibre-rich way of eating that suits your lifestyle
- why fibre diversity – not just quantity – is essential.

Whether you’re an omnivore, a plant lover or somewhere in between, The Fibre Factor will inspire you to rethink your diet and rediscover the missing nutrient your body – and mind – have been craving.

  • Published: 24 March 2026
  • ISBN: 9781761356735
  • Imprint: Penguin eBooks
  • Format: EBook
  • Pages: 272

About the author

Joanna McMillan

Dr Joanna McMillan is a PhD-qualified nutrition scientist, dietitian, food futurist and one of Australia’s most trusted and dynamic health experts. Originally from Scotland, Jo swapped kilts for sunnies more than 25 years ago and has become a familiar face on Australian TV, hosting Good Chef Bad Chef, ABC Catalyst and appearing regularly on The Today Show for two decades. A born communicator, Jo makes the science of nutrition deliciously entertaining, combining her passion for food with a talent for storytelling. She’s an accomplished author, a sought-after speaker and a firm believer that good health starts with joy on your plate.

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