Innerfuel Prebiotic Blend

Name: Innerfuel Prebiotic Blend
Brand: Bulletproof
SKU: product-0352
Price: 45.00 GBP
Availability: InStock
Rating: 4.9 (24 reviews)

£45.00

Innerfuel Prebiotic Blend is a two-ingredient prebiotic fibre supplement from Bulletproof, combining acacia gum and larch arabinogalactan to support the growth of beneficial bacteria in the gut.

Feeds beneficial gut bacteria via fermentable prebiotic fibre
May support digestive regularity and bowel consistency
Studied for potential immune support at the gut lining
Flavour-neutral powder suitable for daily use in drinks
Minimal ingredient list — no fillers or artificial additives

4.9 (24 reflections)

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BulletproofInnerfuel Prebiotic Blend

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about this product.

Innerfuel Prebiotic Blend is a two-ingredient prebiotic fibre supplement from Bulletproof, combining acacia gum and larch arabinogalactan to support the growth of beneficial bacteria in the gut. Both are soluble, non-digestible fibres — they pass through the upper digestive tract intact and are fermented by bacteria in the colon, where they may help increase populations of Bifidobacterium and Lactobacillus species. This is not a probiotic; it feeds the microbiome you already have rather than adding new strains.

The blend suits anyone who wants to support digestive regularity, those who feel their fibre intake is consistently low, or individuals who have recently completed a course of antibiotics and want to encourage a healthier microbial environment. It may also interest people managing bloating or irregular bowel habits who prefer a flavour-neutral powder over capsules.

Both acacia gum and larch arabinogalactan have a good tolerability record. Larch arabinogalactan is also studied for its potential role in immune modulation at the gut lining, though clinical evidence remains in development. The formula is deliberately minimal — just two well-characterised fibre sources, no fillers or flavourings, which makes it straightforward to add to coffee, a smoothie, or water without altering taste significantly. For a doctor-curated shop, that simplicity is a point in its favour: you know exactly what you are taking.

frequently asked.

What is the difference between a prebiotic and a probiotic?

Probiotics are live bacteria you introduce into the gut. Prebiotics are fibres that feed the bacteria already living there. Innerfuel contains no live cultures — it works by providing fermentable fuel for your existing microbiome.

Will this cause bloating?

Soluble fibres can cause temporary gas or bloating when introduced quickly, particularly if your current fibre intake is low. Starting with a smaller amount and increasing gradually over one to two weeks tends to reduce this effect.

Can I take this alongside a probiotic supplement?

Yes — prebiotics and probiotics are commonly used together. The prebiotic fibre may help sustain the bacterial strains introduced by a probiotic, which is why combined use is often recommended. Check with your GP or clinician if you have an inflammatory bowel condition before starting either.

Who should be cautious about taking this product?

Those with irritable bowel syndrome (IBS), particularly the diarrhoea-predominant subtype, should introduce fermentable fibres carefully, as they can aggravate symptoms in some individuals. If you have a diagnosed gut condition, speak to a clinician before adding a prebiotic supplement.

How long before I notice a difference?

Meaningful changes to the gut microbiome typically take several weeks of consistent daily use. Improvements in digestive regularity may be noticed sooner, but prebiotic supplementation is best treated as a long-term habit rather than a quick fix.

Customer reflections

Overall sentiment

4.924 reflections

1 – 6 of 24 reflections

QQVerified Buyer

The first adrenal support that made a quick difference.

4 days ago

Gentle on a sensitive stomach, and I feel like myself again. I had tried two other glandulars before this and neither sat right.

MRVerified Buyer

Steadier mornings within a fortnight.

1 week ago

I was sceptical about glandulars, but my mid-afternoon crash has genuinely eased. One capsule with breakfast and I forget about it.

ALVerified Buyer

Subtle, but real.

2 weeks ago

Not a stimulant, which is exactly what I wanted. It took about ten days, then I realised I wasn’t dreading the afternoon any more.

SKVerified Buyer

My clinician recommended it.

3 weeks ago

Bought after a blood panel flagged a flat cortisol curve. Easy to take, no jitters, and the sourcing is refreshingly transparent.

TPVerified Buyer

Recovery feels faster.

1 month ago

Training hard through a stressful stretch and this has helped me bounce back between sessions. Already on my second bottle.

DVVerified Buyer

Does what it says.

1 month ago

No frills, one ingredient, a sensible dose. I appreciate that it is designed to be used for a season rather than forever.

Innerfuel Prebiotic Blend

about this product.

how to take it

frequently asked.

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