fibre: key to whole microbiome health
- Jun 21, 2025
- 2 min read
Updated: 1 day ago
your gut microbiome explained.
the gut microbiome is a community of trillions of microorganisms living in your digestive tract. these bacteria are not just passive inhabitants. they actively influence how you digest food, absorb nutrients, manage inflammation, and regulate metabolism and immune function.

what determines how well this community thrives?
one key factor to improve your microbiome health is reviewing your dietary fibre intake.
how fibre fuels your microbial health.
unlike most nutrients, fibre resists digestion in the small intestine and travels intact to the colon, where it becomes a primary food source for beneficial gut bacteria. As they ferment fibre, these microbes produce short-chain fatty acids (SCFAs) such as butyrate, acetate and propionate.
SCFAs can:
strengthen the gut lining and reduce permeability
calm chronic, low-grade inflammation by regulating immune responses
improve insulin sensitivity and help regulate appetite hormones like GLP-1 Influence brain function by crossing the blood–brain barrier, affecting mood, emotions and cognition

fibre diversity = microbial diversity.
before you jump to supplements, remember – your diet is the most powerful microbiome tool you have. and the more variety, the better.
different bacteria thrive on different types of fibre, which is why a colourful, plant-rich diet is essential.
did you know.
different gut bacteria types can thrive off the different parts of the same food. take the humble apple. Its skin, flesh and core all feed different gut bugs!


grounded kitchen fibre boosts for microbiome health.
tofu wrap: packed with 8 plant varieties to boost your dietary diversity
salmon & bang bang potato rice bowl: contains a mixture of assorted vegetables and toppings, making “eating the rainbow” easier than ever
kimchi side: a fermented food that introduces beneficial bacteria and pairs well with any rice or noodle bowl

small shifts, big gains.
you don’t need to make extreme changes to see results. try:
adding in fresh or dried herbs and spices like garlic, ginger, gochugaru (Korean red pepper flakes), and fresh coriander to enhance flavour and support gut function.
rotating your grocery basket weekly to support a wider range of microbes and avoid food boredom.
when it comes to the Grounded Kitchen menu – it’s great sticking to what you love, but keep your mind open to meals you haven’t tried before.
remember, the microbiome loves variety!

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