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Fibre: Your Gut’s Best Friend for a Strong Immune System

Table full of fiber foods

It seems like the humble plate of fibre-rich food might just be your immune system’s new best buddy, thanks to a riveting find from the Luxembourg Institute of Health.

Led by the spirited Prof Mahesh Desai, this team has woven a fascinating tale about how fibre not only fills you up but also beefs up your body’s B vitamin supplies, directly beefing up your immune defence!

Here’s the scoop: While B vitamins are famous for keeping our bodies in tip-top shape, it turns out their journey inside us hinges on the bustling world of gut bacteria.

Without enough fibre, these microscopic critters gobble up all the B vitamins for themselves. But throw more fibre into the mix, and voila, they’re generous enough to share more with us.

The team didn’t just take a wild guess here; they put different diets through the wringer in rodent models. When fibre was off the menu, B vitamins took a nosedive, and so did the rodents’ immune balance.

On the flip side, feeding these little guys a buffet of complex cereal fibres or the prebiotic inulin turned things around, rebooting their vitamin production and getting their immune systems back in gear.

Prof Desai can barely contain his excitement, “This isn’t just cool science; it’s crucial info for anyone looking to keep their immune system fighting fit.” And he’s not alone in his enthusiasm.

Dr. Erica Grant, who shares the first author spotlight, points out, “It’s all about the right type of fibre.

Something like inulin can turn the tide in favour of the good bacteria, letting them pump out those precious B vitamins.”

The implications? Big. Dr. Amy Parrish, also at the forefront of this study, believes this could revolutionize personalised nutrition.

Imagine tweaking your diet based on your gut’s very own bacterial lineup to keep your immune system in champion shape.

This whole saga of fibres, vitamins, and bacteria has found its way into the prestigious pages of Springer Nature’s Microbiome journal.

It’s not just a breakthrough—it’s a game changer in how we might eat our way to better health through the bustling metropolis inside our guts.


The research was published in Springer Nature Journal, Microbiome, one of the top journals in the field, under the full title: “Dietary fibres boost gutmicrobiota-produced B vitaminpool and alter host immune landscape”.