Surgeon reveals how to unlock 'trapped' fibre in common garden fruit

Dr Karan Rajan, a prominent UK surgeon and health educator, has revealed a simple kitchen technique designed to significantly enhance the gut-health benefits of pears.

In a social media update shared on Sunday, Dr Rajan introduced the "freeze-thaw" method as a way to make the fruit's nutrients more bioavailable.

Pears are naturally rich in pectin, a soluble fibre that serves as vital fuel for beneficial gut bacteria. However, this fibre is often trapped within the fruit's cell walls.

By freezing and thawing the fruit multiple times, these walls rupture, releasing the pectin and making it easier for the microbiome to ferment.

The biological impact of this process centres on the production of butyrate, a short-chain fatty acid essential for colon health. Dr Rajan explained: “Pectin fibre is preferentially fermented by bifidobacterium and faecalibacterium prausnitzii.

"These are keystone bacterial species and feeding them means a healthier gut. Pectin fermentation produces butyrate, which is your gut's favorite fuel because butyrate powers colonocytes, the cells lining the colon, and strengthens the gut barrier.”

Key benefits of the freeze-thaw method:

Enhanced Bioavailability: Mechanical breakdown allows bacteria to extract more metabolites.

Increased Surface Area: Bacteria can access and ferment fibre more efficiently.

Natural Ripening: The process safely accelerates what occurs naturally over time.

Optimal Results: Three to four cycles represent the "sweet spot" for maximum accessibility without making the fruit overly mushy.

Dr Rajan reassures that the method is entirely safe, effectively providing "more prebiotic bang for your buck per pear."

Note: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.