Explainer 2 min read

How to Choose a Fibre Supplement

Fibre supplements are usually judged by one number: grams per scoop. That number tells you less than what's providing it.

Reviewed by our gut-microbiome scientists Built on 10+ years of MIT research

The short answer

The fibre count on the label matters less than the variety behind it. A single fibre source feeds a narrow slice of your gut bacteria; several fibres feed a broader range.

Most adults get around 18g of fibre a day. The UK recommendation is 30g.
A blend of fibres feeds more species of gut bacteria than one fibre alone.
No fibre supplement is officially NHS approved. NHS guidance sets the target, not the brand.

What actually separates a good fibre supplement from a bad one

Most fibre supplements are judged on one number: grams of fibre per scoop. That number tells you less than what's providing it. A supplement built from a single fibre source, like psyllium husk alone, feeds a narrow slice of your gut bacteria. A blend of several different fibres feeds a broader range, because different bacterial species specialise in fermenting different fibre types.

The UK's daily fibre recommendation is 30g. Most adults get closer to 18g. A supplement is meant to close that gap, not replace real food, so the more useful question isn't how much fibre is in the scoop, it's what you're actually adding to your diet that you're currently missing. If you're not sure where to start, our two-minute fibre quiz can help.

What NHS guidance actually says

NHS advice on fibre focuses on whole foods first: wholegrains, beans, fruit and vegetables. The guidance itself doesn't endorse specific supplement brands, including ours, but that's different from the clinicians who apply it: plenty of the specialists who recommend myota to their patients work within the NHS themselves.

What the guidance does support is the target (30g a day) and getting fibre from a range of sources rather than just one, which is exactly the principle behind our Gut Health blend and Metabolic Health blend: several fibres in one scoop, rather than one fibre repeated.

Single fibre

Feeds one type of bacteria

Effective at what it does, but only a narrow group of your gut bacteria can ferment it.

Multi-fibre blend

Feeds a broader community

Different fibres feed different species, so a blend supports a wider range of your gut bacteria.

The honest question isn't how much fibre is in the scoop. It's how many different types you're adding to what you already eat.

Built from several fibres, not one

Our blends combine multiple prebiotic fibres in the ratios our team arrived at through a decade of research at MIT, rather than relying on a single fibre type. One spoonful, stirred into whatever you're already having.

Researched with

Not sure which fibres you need?

Six questions about your digestion, energy and diet. We'll point you to the right blend.

Take the gut quiz Takes about a minute

Keep reading

Gut Health 30 Jul 2026

From Biohacking to Bioharmony: the softer wellness trend of 2026

Forget the numbers and the spreadsheets. Wellness in 2026 is all about going with the flow.

Beat seasonal allergies and ease inflammation

Gut Health 16 Jul 2026

Beat the seasonal allergies and ease inflammation

Ah summer - sunshine, beach days, and unfortunately also seasonal allergies. But fret not! Here are some of our favourite foods to ease inflammation, support your immune system and alleviate those pesky symptoms.

Gut Health 09 Jul 2026

High protein or high fibre? What should I be focusing on?

Social media is obsessed with protein. From shakes to bars, it’s the nutrient everyone’s talking about. But here’s the catch. Only around 10% of people are actually protein deficient. Instead, we continue to ignore a nutrient that 90% of us are deficient in. That’s right, it’s time fibre had its moment.