Home Ingredients Fibregum™ (Prebiotic Acacia Gum)
Gut Health

Fibregum™ (Prebiotic Acacia Gum)

Acacia senegal / Acacia seyal
Evidence Level
Strong
2 Clinical Trials
6 Documented Benefits
4/5 Evidence Score

Fibregum™ is a prebiotic acacia gum developed by Nexira (France) — distinguished by 90%+ soluble dietary fiber content, 125+ years of Nexira African acacia sourcing, exceptional digestive tolerance (better than FOS/inulin), and clean label positioning. Acacia gum is harvested as natural exudate from acacia tree stems and branches — sustainable, non-destructive harvesting. Used for fiber enrichment in foods/beverages/supplements with minimal sensory impact (odorless, colorless, tasteless in solution).

Studied Dose 5-15 g/day; clinical research often 10 g/day; up to 30+ g/day well-tolerated
Active Compound Acacia gum (arabinogalactan polysaccharide with proteinaceous core)

Benefits

Exceptional Digestive Tolerance

Acacia gum has significantly better GI tolerance than FOS, inulin, or many other prebiotic fibers. Slow fermentation across colon produces less gas/bloating. Doses up to 30 g/day generally tolerated. Foundational positioning advantage.

Supported by Trial 1, Trial 2

90%+ Soluble Fiber Content

High soluble fiber content per gram — efficient fiber delivery. Distinguishes from many fiber sources with mixed soluble/insoluble profiles.

Supported by Trial 2

Prebiotic Activity (Bifidobacterium and Lactobacillus)

Multiple studies (40+ over decades of research) demonstrate prebiotic effects: Bifidobacterium and Lactobacillus increases, SCFA production. Established acacia gum as evidence-based prebiotic.

Supported by Trial 1

Gut Barrier Function Restoration

Nexira proprietary studies suggest acacia gum supports gut impermeability restoration — relevant for leaky gut, IBD-adjacent conditions, and post-antibiotic recovery.

Supported by Trial 1, Trial 2

Glycemic Index Near Zero

Non-digestible carbohydrate; no glucose contribution. Useful for diabetics and metabolic health applications.

Supported by Trial 2

Satiety / Weight Management Support

Soluble fiber extends post-meal satiety; modest contribution to weight management strategies.

Supported by Trial 1, Trial 2

Mechanism of action

1

Slow Distal Colonic Fermentation

Acacia gum ferments slowly across the entire colon — different from FOS/inulin which ferment rapidly in proximal colon. Slow fermentation = less gas production, less bloating, gentler on GI. Reaches distal colon (less commonly fed by other prebiotics).

2

Bifidogenic Effect

Selectively supports Bifidobacterium and Lactobacillus growth; less broad prebiotic effect than FOS but more tolerable. Established prebiotic.

3

SCFA Production

Fermentation produces acetate, propionate, butyrate; supports colonocyte health, gut barrier, immune function.

4

Gut Barrier / Tight Junction Support

Nexira research suggests beneficial effects on intestinal barrier function — restoration of tight junction integrity. Relevant for chronic GI conditions.

5

Low Hygroscopicity / Low Viscosity

Despite being soluble fiber, Fibregum™ has unusually low viscosity and low hygroscopicity — allows high fiber claim with minimal sensory impact in foods/beverages.

Clinical trials

1
Acacia Gum Prebiotic Effect — Multiple Trials
PubMed

40+ years of acacia gum research (Fibregum™ and similar) on prebiotic effects, GI tolerance, and gut microbiome.

Pooled across many trials.

Consistent Bifidobacterium and Lactobacillus increases at 10 g/day; superior tolerability vs FOS/inulin; SCFA production; modest immune effects.

2
Acacia Gum for IBS — Min 2012

Trial of acacia gum for IBS symptoms.

IBS patients.

Improved symptoms with better tolerability than other prebiotics. Useful for IBS-friendly fiber supplementation alongside PHGG.

Side effects and drug interactions

Common Potential side effects

Excellent GI tolerance — distinguishing feature.
Mild GI distress at very high doses (>30 g/day).
Allergic reactions to acacia rare.
Pollen-allergic individuals (acacia pollen) may have cross-reactivity (rare).
Esophageal obstruction risk if taken without water (any soluble fiber).

Important Drug interactions

Generally minimal drug interactions.
Fiber may delay medication absorption — separate by 1-2 hours.
Diabetes medications — modest hypoglycemic effects.
Cholesterol medications — modest additive effects.
Pregnancy/lactation — well-established safety; widely used in food.
Children — safe at appropriate proportional doses.

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Frequently asked questions about Fibregum™ (Prebiotic Acacia Gum)

What is Fibregum?

Fibregum™ is a prebiotic acacia gum developed by Nexira (France) — distinguished by 90%+ soluble dietary fiber content, 125+ years of Nexira African acacia sourcing, exceptional digestive tolerance (better than FOS/inulin), and clean label positioning.

What is Fibregum used for?

Fibregum is researched primarily for Gut Health. Acacia gum has significantly better GI tolerance than FOS, inulin, or many other prebiotic fibers. Slow fermentation across colon produces less gas/bloating. Doses up to 30 g/day generally tolerated. Foundational positioning advantage.

What is the recommended dosage of Fibregum?

The clinically studied dose is 5-15 g/day; clinical research often 10 g/day; up to 30+ g/day well-tolerated Always follow the product label and check with a healthcare provider for personal advice.

Is Fibregum safe, and does it have side effects?

For most healthy adults, Fibregum is well tolerated at studied doses. Reported effects can include: Excellent GI tolerance — distinguishing feature. Mild GI distress at very high doses (>30 g/day). It may also interact with some medications. Fibregum is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Fibregum interact with any medications?

Possible interactions include: Generally minimal drug interactions. Fiber may delay medication absorption — separate by 1-2 hours. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Fibregum?

NutraSmarts rates the evidence for Fibregum as Strong (4 out of 5). It is backed by 2 clinical trials and 4 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(4 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Calame W, Weseler AR, Viebke C, Flynn C, Siemensma AD. Gum arabic establishes prebiotic functionality in healthy human volunteers in a dose-dependent manner. Br J Nutr. 2008;100(6):1269-75. doi: 10.1017/S0007114508981447.PubMedUsed to support: In healthy volunteers, daily gum arabic raised Bifidobacterium and Lactobacillus dose-dependently with ~10 g/day optimal, and digestive tolerance stayed high up to 30 g/day, backing the prebiotic and high-tolerance claims; industry-authored.
  2. Larson R, Nelson C, Korczak R, Willis H, Erickson J, Wang Q, Slavin J. Acacia Gum Is Well Tolerated While Increasing Satiety and Lowering Peak Blood Glucose Response in Healthy Human Subjects. Nutrients. 2021;13(2):618. doi: 10.3390/nu13020618.PubMedUsed to support: Randomized crossover in 48 adults: acacia gum increased satiety and modestly lowered peak blood glucose with only minimal GI symptoms even at high doses, supporting the satiety, glycemic and high-tolerance claims; glucose effects were small and industry-funded (Nexira).
  3. Babiker R, Merghani TH, Elmusharaf K, Badi RM, Lang F, Saeed AM. Effects of Gum Arabic ingestion on body mass index and body fat percentage in healthy adult females: two-arm randomized, placebo controlled, double-blind trial. Nutr J. 2012;11:111. doi: 10.1186/1475-2891-11-111.PubMedUsed to support: In 120 healthy women, 30 g/day gum arabic for 6 weeks significantly reduced BMI and body-fat percentage versus placebo, supporting a metabolic/body-composition benefit; single-center, with pectin (1 g) used as comparator rather than a true inert placebo.
  4. Jarrar AH, Stojanovska L, Apostolopoulos V, Feehan J, Bataineh MF, Ismail LC, Al Dhaheri AS. The Effect of Gum Arabic (Acacia Senegal) on Cardiovascular Risk Factors and Gastrointestinal Symptoms in Adults at Risk of Metabolic Syndrome: A Randomized Clinical Trial. Nutrients. 2021;13(1):194. doi: 10.3390/nu13010194.PubMedUsed to support: RCT in adults at metabolic-syndrome risk: 40 g/day gum arabic was well tolerated with only mild transient GI symptoms, supporting the high-tolerance claim, though effects on cardiovascular/metabolic markers were largely non-significant (mixed/null).