- Published: 24 March 2026
- ISBN: 9781761356728
- Imprint: Penguin
- Format: Trade Paperback
- Pages: 288
- RRP: $36.99
The Fibre Factor
A Science-backed Guide to a Healthier Gut, Stronger Heart and Sharper Brain
- Published: 24 March 2026
- ISBN: 9781761356728
- Imprint: Penguin
- Format: Trade Paperback
- Pages: 288
- RRP: $36.99
Delivered with Jo’s usual easy to read style, this book makes getting enough fibre easy! An essential resource for everyone looking to improve their gut health, heart health and more!
Dr Ginni Mansberg
For years I’ve called fibre the forgotten nutrition hero, and Dr Joanna McMillan has finally given it the spotlight it deserves. The Fibre Factor is Joanna at her finest: deeply researched, utterly readable and delivered with her trademark blend of warmth, wit and scientific rigour.
Lisa Donaldson, Accredited Practising Dietitian
Australia’s favourite nutrition scientist and dietitian, Dr Joanna McMillan, has done it again. Joanna is renowned for turning complex science into practical, engaging guidance that resonates with people across the country. In The Fibre Factor, she uncovers the critical role of fibre – a nutrient that supports gut health and so much more – and brings it to life with her trademark charm.
Maree Ferguson, Founder of Dietitian Connection
Jo McMillan is a world-class communicator who makes complex science make sense. Though fibre might not be the sexiest nutrient, this fabulous book reveals why it is fundamental for good health.
Sarah Berry, Lifestyle & Health Writer at The Sydney Morning Herald and The Age
The Fibre Factor is your modern-day encyclopedia of fibre. It’s a brilliant blend of science, fascinating history, practical tools and cheeky fun facts. If anyone can make fibre sexy, it's Dr Joanna! She shows you why fibre is a top nutrient of concern in our diets, giving you the biggest return on investment for your health and it will forever change the way you see fibre on your plate.
Dr Flavia Fayet-Moore, CEO FoodiQ Global
A powerful reminder that what nourishes the gut also nurtures the mind. Dr Jo McMillan makes the science of fibre interesting, accessible and profoundly important.
Professor Felice Jacka OAM
