Bio.me Daily Prebiotic Fiber
An unflavoured soluble fibre powder made from just two ingredients: partially hydrolysed guar gum and resistant potato starch, one tablespoon daily for a 30-day supply at $34.99. The ingredient choice is the point. Both are among the better-tolerated fibres, and PHGG in particular is used clinically because it ferments slowly enough to avoid the gas that catches people out with inulin or FOS.
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.
- Partially hydrolysed guar gum (PHGG)amount not published
Slowly fermented soluble fibre, notably well tolerated and used in clinical nutrition
- Resistant potato starchamount not published
Resistant starch, a substrate for butyrate-producing bacteria
How the manufacturer says it works
Bio.me describes it as an unflavoured soluble fibre powder made with two simple ingredients — partially hydrolysed guar gum and resistant potato starch — in a proprietary blend that is easy to digest, taken daily to nourish gut health, promote nutrient absorption, improve microbiome balance, help reduce occasional bloating, gas and indigestion, and meet daily fibre needs.
What the evidence actually supports
The formulation choices are unusually well judged. Partially hydrolysed guar gum is the fibre most often chosen in clinical settings precisely because it is tolerated where others are not — it ferments slowly and produces less gas than inulin or FOS, and it has evidence in both constipation and diarrhoea. Resistant potato starch is a substrate for butyrate producers, and butyrate is the short-chain fatty acid most associated with gut barrier integrity. Using two named fibres rather than a long unspecified blend makes the product assessable, and unflavoured means no sweeteners.
Where that evidence stops
The gram amount per tablespoon is not published, which is the number that determines whether a fibre product works — 'one tablespoon' varies by density and tells you little. Claiming to reduce bloating and gas is fair for PHGG specifically but any fermentable fibre can cause both initially, and no ramp-up guidance is given. 'Supports skin clarity' is a claim with no meaningful evidence behind it. At $34.99 a month this is more expensive than plain PHGG bought on its own. Effects on your own GLP-1 secretion through fermentation are modest and nothing like a medication.
Strengths and problems
Strengths
- Both fibres named, and both chosen for tolerability rather than marketing appeal
- PHGG is the fibre used clinically where others are not tolerated
- Unflavoured, so no sweeteners or flavourings
- Only two ingredients — nothing hidden in a blend
Problems
- No gram amount published; 'one tablespoon' is not a specification
- The skin clarity claim has no meaningful evidence
- More expensive than buying plain PHGG
- No warnings, allergens, testing or refund terms published
What the manufacturer publishes
Publishes 2 of 8 standard terms.
- Intended use
- Sold as a dietary supplement for gut health, microbiome balance and daily fibre intake, not as a treatment for any condition.
- Directions
- One tablespoon daily, taken consistently, as published.
- 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
- $34.99 for a stated 30-day supply 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 who has tried inulin or FOS and found them intolerable — PHGG is the fibre most likely to work where those failed.
Do not use if
- You have a bowel stricture or history of obstruction
- You need a specific gram target for constipation
- You can buy plain PHGG more cheaply and do not need the blend
Frequently asked
Why is PHGG better tolerated than other fibres?
Because it ferments slowly and evenly along the colon rather than rapidly at the start of it. Rapid fermentation is what produces the sudden gas and bloating people get from inulin or FOS, and it is why those fibres are restricted on a low-FODMAP diet. PHGG is used in clinical nutrition for exactly this reason and has evidence in both constipation and diarrhoea. If fibre supplements have not agreed with you before, this is the category to try next.
Sources
Captured . Manufacturer pages change — check the current version before relying on anything.