The low-bloat prebiotic that supports microbiome diversity, butyrate production, and gut barrier integrity.
Most people know they should get more fibre, but many fibre products create as many problems as they solve. Rapidly fermenting fibres can leave sensitive people bloated, uncomfortable, and unlikely to stay consistent.
For anyone who wants a daily prebiotic that is easier to tolerate, including people with sensitive digestion who still want microbiome and gut-barrier support built into their routine.
The Prebiotic Your Microbiome Actually Tolerates
5–10g/day | Dissolved in water with meals | Paired with: All Precision stacks (universal companion)
Let’s talk about fibre — because most people are doing it wrong. They buy a fibre supplement, mix it into water, and within 30 minutes they’re bloated, gassy, and regretting every decision they’ve made. Sound familiar?
Here’s the problem: most fibre supplements — especially the ones based on inulin, FOS, or psyllium — are aggressive fermenters. They hit your gut microbiome like a fire hose, producing gas faster than your body can handle it. For anyone with a sensitive gut (which includes most people with IBS, SIBO history, or general digestive sensitivity), these products make things worse before they get better. Sometimes they just make things worse, period.
Precision Fibre™ uses Partially Hydrolysed Guar Gum (PHGG) — marketed as SoluFibre by AOR. And here’s why we chose it: it’s the only prebiotic fibre that is both Low-FODMAP validated and clinically proven to increase beneficial bacteria and butyrate production without the bloating and gas that sabotage compliance.
Butyrate is the key word here. It’s the primary fuel source for your colonocytes — the cells that line your large intestine. When butyrate production is healthy, your gut lining stays intact, inflammation stays low, and the signals your gut sends to your brain (via the gut-brain axis) remain balanced. When butyrate drops, barrier integrity weakens, and systemic inflammation creeps in.
We recommend Precision Fibre™ as a universal companion to every Precision stack — because gut health isn’t just a gut issue. It’s an everything issue.
Detail Specification Active Ingredient Partially Hydrolysed Guar Gum (PHGG / SoluFibre) Source AOR — Canadian, third-party tested Daily Dose 5–10g (one to two scoops) — start low, build up Timing With meals — dissolved in water, juice, or smoothie Format Completely clear, flavourless, no texture change FODMAP Status Low-FODMAP validated — safe for IBS and sensitive guts
Every product in the Precision line is here for a reason. Here’s the science behind this one.
Meta-analysis of 64 RCTs: dietary fibre supplementation significantly increases Bifidobacterium and Lactobacillus abundance. PHGG specifically drives butyrate-producing species without the excessive gas and bloating associated with inulin or FOS-based prebiotics.
PHGG is a slow-fermenting fibre — meaning it reaches the distal colon where butyrate production matters most, rather than fermenting rapidly in the proximal colon (which is what causes bloating). This is the “right fibre in the right place” principle.
Clinical trials confirm PHGG is well-tolerated in IBS patients — the population most sensitive to fibre supplementation. Low-FODMAP validated by Monash University. This is the fibre you can actually stick with.
Butyrate is the primary energy source for colonocytes and a key regulator of tight junction proteins. Adequate butyrate production supports intestinal barrier function — reducing the “leaky gut” phenomenon that drives systemic inflammation.
This product is well-researched and appropriate for most healthy adults. The following points are worth knowing — particularly if you are taking prescription medications or have specific health conditions. When in doubt, share this information with your prescribing physician.
Start Low
Begin with 5g/day for the first week, then increase to 10g/day if tolerated. Even though PHGG is the gentlest prebiotic available, introducing any new fibre source gradually allows your microbiome to adapt.
Medication Timing
As with all fibre supplements, take at least 2 hours apart from any prescription medications to avoid interference with absorption.
These statements have not been evaluated by Health Canada or the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. The evidence summaries provided are for educational purposes and represent published research findings. If you are pregnant, nursing, taking medication, or have a health condition, please consult your healthcare provider before use.
Precision Fibre™ is your second universal companion — pair it with any Precision stack. For maximum gut support, combine with Precision Gut™ and Precision Glutamine™.
Not sure where to start? Book a complimentary 15-minute coaching call.
| Ingredient / Detail | Dose / Value | Timing | Why It Matters |
|---|---|---|---|
Active ingredient Partially hydrolysed guar gum (PHGG / SoluFibre) | Partially hydrolysed guar gum (PHGG / SoluFibre) | Reference | Core product detail for format, dose, sourcing, or pairing. |
Source AOR - Canadian, third-party tested | AOR - Canadian, third-party tested | Reference | Core product detail for format, dose, sourcing, or pairing. |
Daily dose 5-10g (one to two scoops) - start low and build up | 5-10g (one to two scoops) - start low and build up | Reference | Core product detail for format, dose, sourcing, or pairing. |
Timing With meals - dissolved in water, juice, or a smoothie | With meals - dissolved in water, juice, or a smoothie | Reference | Core product detail for format, dose, sourcing, or pairing. |
Format Clear, flavourless powder with minimal texture change | Clear, flavourless powder with minimal texture change | Reference | Core product detail for format, dose, sourcing, or pairing. |
FODMAP status Low-FODMAP validated for sensitive digestion | Low-FODMAP validated for sensitive digestion | Reference | Core product detail for format, dose, sourcing, or pairing. |
PHGG / SoluFibre Slow-fermenting prebiotic fibre Timing: With meals Supports beneficial bacteria, butyrate production, and a more resilient gut environment with better day-to-day tolerance. | 5-10g | With meals | Supports beneficial bacteria, butyrate production, and a more resilient gut environment with better day-to-day tolerance. |
Precision Fibre uses partially hydrolysed guar gum, a slower-fermenting prebiotic selected because it supports beneficial gut bacteria and butyrate production without the aggressive gas and bloating that often come with harsher options. That makes it easier to stay with long enough to matter.
Butyrate is especially important because it fuels colon cells and supports the integrity of the gut lining. When this system is working well, gut signalling, barrier resilience, and overall digestive comfort tend to work better too.
Educational summary. Not a substitute for personalised medical advice.
Meta-analytic evidence supports fibre supplementation for increasing beneficial bacterial populations such as Bifidobacterium and Lactobacillus. PHGG is especially useful because it encourages these shifts with a more manageable tolerance profile.
PHGG is a slower-fermenting fibre, helping fermentation occur further along the colon where butyrate production is especially useful. This supports the 'right fibre in the right place' principle for more effective tolerance and function.
Clinical work in IBS-prone populations suggests PHGG is gentler than more aggressive prebiotics. Its low-FODMAP validation makes it a strong option for people who have struggled with traditional fibre products.
Butyrate serves as a key fuel source for colonocytes and supports tight-junction regulation, making PHGG relevant not only for digestion, but also for the integrity of the gut lining and downstream inflammatory tone.
As with other fibre supplements, take it at least 2 hours away from prescription medications to reduce the chance of interfering with absorption.
Start with 5g daily for the first week, then increase if well tolerated. Even gentle fibres work best when introduced gradually.
Important. These statements have not been evaluated by Health Canada or the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. The evidence summaries provided are for educational purposes only and represent published research findings - they are not claims about this specific product's ability to treat any condition. If you are pregnant, nursing, taking medication, or have a health condition, please consult your healthcare provider before use.