GoBiotix Prebiotic Fiber Boost
A prebiotic fibre powder built on FOSSENCE P95, a branded short-chain fructooligosaccharide, delivering a published 5 g of soluble prebiotic fibre per serving. It states the fibre type, the branded source and the gram amount — the three things a fibre product should publish and most do not. It also explains the prebiotic-versus-probiotic distinction correctly.
Last reviewed · researched from the manufacturer’s published pages by Tom
What’s in it
Amounts are shown only where the manufacturer publishes them. Anything without a figure is undisclosed — and for an active ingredient, an undisclosed dose is the central problem with this category.
- FOSSENCE P95 short-chain fructooligosaccharide5 g soluble prebiotic fibre per serving
Branded FOS derived from fermented cane sugar
How the manufacturer says it works
GoBiotix states the product is powered by FOSSENCE P95, a clinically studied short-chain fructooligosaccharide derived from fermented cane sugar, delivering 5 g of soluble prebiotic fibre per serving to feed beneficial gut bacteria and support digestive regularity, bloating relief and daily gut health, and explains that unlike probiotics, prebiotics nourish the bacteria you already have.
What the evidence actually supports
This is how a fibre product should be labelled: the fibre type named, the branded source stated, and the gram amount published. Five grams is a genuinely useful serving — roughly the dose used in prebiotic research and enough to matter, against products delivering a fraction of that. Fructooligosaccharides are well-characterised fermentable fibres and short-chain FOS is fermented readily in the proximal colon. The prebiotic-versus-probiotic explanation is accurate and more than most sellers bother with. For GLP-1 users this is also the relevant fibre category, since fermentation to short-chain fatty acids is the actual route by which diet influences endogenous GLP-1 secretion.
Where that evidence stops
Readily fermentable fibres like FOS are the ones most likely to cause gas and bloating when introduced quickly, which is an awkward tension with a product marketed partly for bloating relief — the page gives no guidance on starting at a lower dose and building up. People with IBS often tolerate FOS poorly, since it is a FODMAP, and that is not mentioned. Feeding gut bacteria influences your own GLP-1 modestly and is nothing like a GLP-1 medication. Directions, warnings, allergen information and third-party testing were not published on the page we captured.
Strengths and problems
Strengths
- Publishes the fibre type, branded source and gram amount — all three
- 5 g per serving is a genuinely useful dose, not a token one
- Explains the prebiotic versus probiotic distinction correctly
- Multiple pack sizes with clear per-unit savings
Problems
- FOS is highly fermentable and commonly causes gas if introduced too quickly, with no ramp-up guidance given
- FOS is a FODMAP and often poorly tolerated in IBS, which is not mentioned
- Directions, warnings, allergens and testing were not published on the page we captured
- Prebiotic effects on your own GLP-1 are modest
What the manufacturer publishes
Publishes 1 of 8 standard terms.
- Intended use
- Sold as a dietary supplement for digestive regularity, bloating and gut health, not as a treatment for any condition.
- Directions
- Not publicly disclosed on the pages we captured.
- Warnings
- Not publicly disclosed on the pages we captured.
- Allergens
- Not publicly disclosed on the pages we captured.
- Third-party testing
- Not publicly disclosed on the pages we captured.
- Pricing
- $30.99, $60.00, $90.00 and $180.97 depending on quantity at capture.
- Subscription
- Not publicly disclosed on the pages we captured.
- Refunds
- Not publicly disclosed on the pages we captured.
- Shipping
- Not publicly disclosed on the pages we captured.
May suit
Someone on a GLP-1 wanting a properly dosed prebiotic fibre who will start at half a serving and build up over a couple of weeks.
Do not use if
- You have IBS or are following a low-FODMAP diet — FOS is likely to aggravate it
- You have a bowel stricture or history of obstruction
- You already experience significant bloating and cannot tolerate more gas initially
Frequently asked
Why does a fibre marketed for bloating sometimes cause it?
Because the mechanism cuts both ways. Fermentable fibre feeds gut bacteria, and fermentation produces gas — that is the same process that generates the short-chain fatty acids you want. Introduced gradually, most people adapt and regularity improves; introduced at a full 5 g serving straight away, the first week or two can be uncomfortable. Start at a quarter or half serving and build up over two weeks.
Sources
Captured . Manufacturer pages change — check the current version before relying on anything.