Why FIBRE is your missing ingredient to longevity

In this episode, I sit down with Dr. Joanna McMillan, author of 'The Fibre Factor', to unpack the groundbreaking science linking fibre to a stronger & healthier body.

Why FIBRE is your missing ingredient to longevity

Today I want to talk about something that doesn’t get a lot of airtime, but is becoming increasingly important for your health in the second half of life…

Fibre.

For years it’s been overshadowed by protein trends, low-carb diets and the obsession with calories. But new science is revealing that fibre may be one of the most powerful ingredients for long-term health, influencing everything from gut health and weight to brain function, heart health and even our mood.

So, this week on Prime Time, I’m joined by PhD-qualified nutrition scientist, dietitian, food futurist and one of Australia’s most trusted health experts, Dr. Joanna McMillan, author of The Fibre Factor. You can find Dr. Joanna’s book at all good retailers and online here.

We unpack why many of us are living in what she calls a “fibre famine”, what fibre actually does inside the body, and how simple changes to what you eat can have surprisingly powerful effects on your long-term health.

LISTEN TO THIS EPISODE OF THE PODCAST HERE:

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Highlights of the conversation:

• Why we’re living through a global “fibre famine”: Modern diets have slowly stripped fibre out of our food, from refined grains to ultra-processed meals, leaving many of us far below the levels our bodies actually need.

• Fibre isn’t just one thing, it’s many different compounds: Different types of fibre perform different jobs in the body - some move food through the gut, some bind toxins and cholesterol, and others feed the gut microbiome, producing compounds that affect the whole body.

• The surprising connection between fibre and brain health: Certain fibres feed gut bacteria that produce compounds able to travel through the bloodstream, cross into the brain and help reduce inflammation and protect brain cells.

• The role between fibre, blood sugar and metabolic health: Fibre slows how quickly glucose enters the bloodstream, helping prevent the blood sugar spikes that contribute to insulin resistance and diabetes over time.

• Fibre and bowel health, including diverticulitis and bowel cancer: We unpack how fibre helps maintain healthy digestion, reduces strain on the colon and supports the production of protective compounds in the gut.

• Why variety matters more than supplements: One fibre supplement won’t solve the problem. What your microbiome really needs is diversity.

• What a fibre-rich day of eating can actually look like: From oats and berries at breakfast to legumes, whole grains and vegetables across the day, Dr. Joanna shares simple food choices that can dramatically lift your fibre intake.

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From Bec’s Desk

Another week ticks by and it’s been a big one behind the scenes.

I’ve spent a lot of time in my ever-improving home recording studio, filming our UK course – pensions and pounds instead of dollars and superannuation! It’s been a fun shift, and a good reminder that while the systems change, the questions people have about retirement really don’t.

I’ve also been working on a new social media series about the Age Pension changes and the “sweet spot.” If you want to follow along, make sure you’re connected with me on Facebook or Instagram. I’ll be sharing it all there.

At the same time, we’re gearing up for the release of our next Aussie How to Have an Epic Retirement flagship course, kicking off in May. Earlybird bookings will be opening very soon… so keep an eye out.

Next week, I hit the road for four weeks of roadshows with the AMP team, speaking to advisers about the future of retirement. I always enjoy these sessions. It’s where I get to bring the voice of everyday Australians into the room and talk about what people actually need and want from advice now.

And in between all of that, I’ve been reading our March Book Club pick: Sisterhood Rules by Kathy Lette. It’s a wild ride – fun, fast, and very reflective of modern life. Think: a mischievous 69-year-old running off with a younger lover, daughters chasing her down, and plenty of laughs along the way.

Now I need your help.

I’m choosing next month’s Prime Time Book Club read, and I’d love your suggestions. If there’s a book you think we should dive into – fiction, non-fiction, inspiring, entertaining – hit reply and let me know.

I can’t wait to see what you recommend. Have a good week and don’t forget to Make your Prime Time count!

Cheers, Bec