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The Fibre Revolution
  • Published: 10 February 2026
  • ISBN: 9781761356728
  • Imprint: Penguin
  • Format: Trade Paperback
  • Pages: 272
  • RRP: $36.99
Categories:

The Fibre Revolution

The ultimate guide to a happier gut, healthier heart and sharper brain





Nutrition scientist and TV personality Dr Joanna McMillan unpacks the groundbreaking science linking fibre to a stronger and healthier body and mind.

We’re in a fibre famine.

Modern food systems have stripped fibre from our plates, leaving us with ultra-processed foods that are fibre-poor and nutritionally hollow. Even when fibre is added back in, it’s often just one extracted form, missing the diversity our bodies crave. What is more, fibre is so much more than a remedy for constipation or something your grandma worries about: fibre is the nutrient that could transform your health.

In The Fibre Revolution, Dr McMillan reveals how embracing the diversity of fibres can revolutionise your health and well-being. Drawing on cutting-edge research, she explains why fibre is the ultimate multitasker, fueling your gut microbiome, which in turn impacts everything from digestion to mental health, brain function and immunity. It also supports your heart by regulating cholesterol and blood pressure, and helps stabilise blood sugar, manage weight and reduce inflammation. In addition, it plays a role in detoxification by binding and eliminating toxins from the body, and is even linked to living longer and ageing better.

Powered by science, this book brings fibre back in a fresh, modern, and downright irresistible way. With practical tips, actionable advice and recipes, this book equips you to rethink your plate and embrace the nutrient your body has been missing.

Fibre is no longer just for gut health — it’s the missing link to unlocking better physical, mental and emotional well-being.

  • Published: 10 February 2026
  • ISBN: 9781761356728
  • Imprint: Penguin
  • Format: Trade Paperback
  • Pages: 272
  • RRP: $36.99
Categories:

About the author

Joanna McMillan

Joanna is one of Australia’s best-known nutrition and healthy lifestyle experts. She is a regular on the Nine Network and the official nutritionist for TODAY. Joanna is an author of several books including the award winning Inner Health Outer Beauty and the internationally published The Low GI Diet, has a weekly column in Sunday Life and blogs for Essential Kids.

Her accent gives her away as a Scot, but she made Australia her home in 1999 where she subsequently gained her PhD in nutritional science from the University of Sydney. Her university studies started with psychology, followed by a Bachelor of Science, all the while working as a fitness instructor, which she did for over 15 years. Together this gives her a holistic approach to health and wellbeing, and the best thing is she never sits on the health high horse! As a down-to-earth Scot, all her advice is tempered by what is practical, doable and fun whilst still giving the desired result.

Joanna is vice-president of the Australian Lifestyle Medicine Association (ALMA) and a member of Dietitians Association of Australia and The Nutrition Society.

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