Home Ingredients Fibalance® (Partially Hydrolyzed Guar Gum)
Gut Health

Fibalance® (Partially Hydrolyzed Guar Gum)

Evidence Level
Moderate
2 Clinical Trials
5 Documented Benefits
3/5 Evidence Score

Fibalance® is a partially hydrolyzed guar gum (PHGG) prebiotic fiber developed by ZymeBase / ECA Healthcare — derived from guar bean (Cyamopsis tetragonoloba). Distinguished by Low FODMAP certified status by Monash University, ~85% soluble dietary fiber content, and gentler GI tolerability than fermentable prebiotics like FOS/inulin. Used for IBS-friendly fiber supplementation, microbiome support, and constipation/regularity in those who can't tolerate other prebiotics.

Studied Dose 5-10 g/day; clinical trials commonly 5-6 g/day
Active Compound Partially hydrolyzed guar gum (PHGG)

Benefits

Low FODMAP Certified — IBS-Friendly Fiber

Distinguishes Fibalance® from FOS, inulin, and other high-FODMAP prebiotics that worsen IBS symptoms. Monash University Low FODMAP Certified. Allows fiber supplementation for IBS patients without symptom flares. Foundational positioning.

Supported by Trial 1

Constipation Relief

PHGG generally improves stool frequency and consistency in chronic constipation. Multiple PHGG trials (different brands) consistently show benefit. Mechanism: improved water-binding capacity in colon, gentle SCFA production.

Supported by Trial 2

IBS-D and IBS-C Symptom Improvement

PHGG paradoxically improves both diarrhea-predominant and constipation-predominant IBS — normalizes stool consistency. Useful in mixed-pattern IBS.

Supported by Trial 2, Trial 1

Microbiome Support (Gentle Prebiotic)

Fermented in colon producing SCFAs and supporting beneficial bacteria, but fermentation is slower and gentler than FOS/inulin. Less gas production. Suitable for sensitive digestive systems.

Glycemic and Satiety Effects

Soluble fiber slows gastric emptying and modestly attenuates postprandial glucose. Mild satiety enhancement.

Supported by Trial 1, Trial 2

Mechanism of action

1

Partial Hydrolysis Reduces Viscosity

Native guar gum has very high viscosity (creates thick gel) — unsuitable for many applications and harsh on GI. Partial hydrolysis reduces molecular weight and viscosity, making PHGG palatable and tolerable while preserving fermentation/prebiotic effects.

2

Slow, Gentle Colonic Fermentation

PHGG ferments slowly across entire colon; produces SCFAs (acetate, propionate, butyrate) gradually. Slow fermentation = less gas/bloating than FOS/inulin which ferment rapidly in proximal colon.

3

Bifidogenic and Lactobacillus-Supportive

Increases Bifidobacterium and Lactobacillus populations. Less specific bifidogenic effect than GOS, but broad microbiome benefit.

4

Stool Bulking and Hydration

Soluble fiber binds water in colon — softens hard stools (constipation) and binds excess water in loose stools (diarrhea). Normalizes stool consistency.

Clinical trials

1
PHGG for IBS — Niv 2016

Clinical trial of PHGG (5 g/day) vs placebo in 121 IBS patients for 18 weeks.

121 IBS patients.

Significant improvement in IBS symptoms, abdominal pain, bowel habit. Established PHGG as evidence-based IBS-friendly fiber.

2
PHGG for Functional Constipation

Multiple trials of PHGG for constipation in adults and children.

Constipation patients across populations.

Consistent improvement in stool frequency, consistency, ease of passage. Among most evidence-based fiber options for constipation.

Side effects and drug interactions

Common Potential side effects

Excellent GI tolerability — distinguishes from other fibers.
Mild initial bloating with rapid introduction.
Headache rare.
Allergic reactions to legumes possible (guar bean is legume).
Esophageal obstruction risk if taken without adequate water (any fiber).

Important Drug interactions

Fiber supplements may delay absorption of medications — separate by 1-2 hours.
Diabetes medications — modest hypoglycemic effects from gastric emptying delay.
Cholesterol medications — modest additive lipid effects.
Pregnancy/lactation — generally safe; widely used in food applications.
Children — safe at appropriate doses.

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Frequently asked questions about Fibalance® (Partially Hydrolyzed Guar Gum)

What is Fibalance?

Fibalance® is a partially hydrolyzed guar gum (PHGG) prebiotic fiber developed by ZymeBase / ECA Healthcare — derived from guar bean (Cyamopsis tetragonoloba). Distinguished by Low Fodmap certified status by Monash University, ~85% soluble dietary fiber content, and gentler GI tolerability than fermentable prebiotics l…

What is Fibalance used for?

Fibalance is researched primarily for Gut Health. Distinguishes Fibalance® from FOS, inulin, and other high-Fodmap prebiotics that worsen IBS symptoms. Monash University Low Fodmap Certified. Allows fiber supplementation for IBS patients without symptom flares. Foundational positioning.

What is the recommended dosage of Fibalance?

The clinically studied dose is 5-10 g/day; clinical trials commonly 5-6 g/day Always follow the product label and check with a healthcare provider for personal advice.

Is Fibalance safe, and does it have side effects?

For most healthy adults, Fibalance is well tolerated at studied doses. Reported effects can include: Excellent GI tolerability — distinguishes from other fibers. Mild initial bloating with rapid introduction. It may also interact with some medications. Fibalance 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 Fibalance interact with any medications?

Possible interactions include: Fiber supplements may delay absorption of medications — separate by 1-2 hours. Diabetes medications — modest hypoglycemic effects from gastric emptying delay. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Fibalance?

NutraSmarts rates the evidence for Fibalance as Moderate (3 out of 5). It is backed by 2 clinical trials and 5 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(5 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. Parisi GC, Zilli M, Miani MP, Carrara M, Bottona E, Verdianelli G, Battaglia G, Desideri S, Faedo A, Marzolino C, Tonon A, Ermani M, Leandro G. High-fiber diet supplementation in patients with irritable bowel syndrome (IBS): a multicenter, randomized, open trial comparison between wheat bran diet and partially hydrolyzed guar gum (PHGG). Dig Dis Sci. 2002;47(8):1697-1704. doi: 10.1023/a:1016419906546.PubMedUsed to support: Multicenter RCT showing PHGG (the same fiber as Fibalance®) was superior or equivalent to wheat bran for reducing overall IBS symptoms including abdominal pain and altered bowel habits; directly supports IBS-C and IBS-D symptom improvement claims.
  2. Giannini EG, Mansi C, Dulbecco P, Savarino V. Role of partially hydrolyzed guar gum in the treatment of irritable bowel syndrome. Nutrition. 2006;22(3):334-342. doi: 10.1016/j.nut.2005.10.003.PubMedUsed to support: Clinical study demonstrating PHGG at 5 g/day significantly reduced IBS symptom severity including bloating, pain, and altered bowel function; supports both IBS-C and IBS-D benefit claims.
  3. Russo L, Andreozzi P, Zito FP, Vozzella L, Savino IG, Sarnelli G, Cuomo R. Partially hydrolyzed guar gum in the treatment of irritable bowel syndrome with constipation: effects of gender, age, and body mass index. Saudi J Gastroenterol. 2015;21(2):104-110. doi: 10.4103/1319-3767.153835.PubMedUsed to support: Clinical investigation of PHGG in IBS-C demonstrating improvements in stool frequency and consistency; supports constipation relief and IBS-C symptom improvement claims.
  4. Chan TCW, Yu VMW, Luk JKH, Chu LW, Yuen JKY, Chan FHW. Effectiveness of Partially Hydrolyzed Guar Gum in Reducing Constipation in Long Term Care Facility Residents: A Randomized Single-Blinded Placebo-Controlled Trial. J Nutr Health Aging. 2022;26(3):247-251. doi: 10.1007/s12603-022-1747-2.PubMedUsed to support: RCT confirming PHGG supplementation significantly reduced constipation in a clinical population; directly supports the constipation relief benefit claim.
  5. Yasukawa Z, Inoue R, Ozeki M, Okubo T, Takagi T, Honda A, Naito Y. Effect of Repeated Consumption of Partially Hydrolyzed Guar Gum on Fecal Characteristics and Gut Microbiota: A Randomized, Double-Blind, Placebo-Controlled, and Parallel-Group Clinical Trial. Nutrients. 2019;11(9):2170. doi: 10.3390/nu11092170.PubMedUsed to support: RCT demonstrating PHGG consumption favorably altered fecal microbiota composition (increased Bifidobacterium and Lactobacillus) and improved stool characteristics; supports microbiome/prebiotic benefit claims.