Partially Hydrolyzed Guar Gum (PHGG) pour Irritable Bowel Syndrome (IBS)

Q: Does Partially Hydrolyzed Guar Gum (PHGG) help with Irritable Bowel Syndrome (IBS)?

Based on 5 studies with 350 participants, there is moderate evidence from clinical studies that Partially Hydrolyzed Guar Gum (PHGG) may support Irritable Bowel Syndrome (IBS) management. Our evidence grade is B (Good Evidence).

Q: How much Partially Hydrolyzed Guar Gum (PHGG) should I take for Irritable Bowel Syndrome (IBS)?

Studies have used various dosages. A commonly studied range is 5-7 g/day. Always consult your healthcare provider before starting any supplement regimen.

Q: Are there side effects of Partially Hydrolyzed Guar Gum (PHGG)?

Reported side effects may include Minimal gas and bloating (significantly less than other fibers), Mild abdominal discomfort in rare cases, Loose stools at very high doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

Q: How strong is the evidence for Partially Hydrolyzed Guar Gum (PHGG) and Irritable Bowel Syndrome (IBS)?

We rate the evidence as Grade B (Good Evidence). This rating is based on 5 peer-reviewed studies with 350 total participants. The overall direction of effect is positive.

Reduces both IBS-C and IBS-D symptoms. Well-tolerated prebiotic that does not cause excess gas. Also shows promise for SIBO-associated symptoms.

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En conclusion

Reduces both IBS-C and IBS-D symptoms. Well-tolerated prebiotic that does not cause excess gas. Also shows promise for SIBO-associated symptoms.

Key Study Findings

Randomized Controlled Trial n=47 8 weeks Double-blind

Effects of a polyphenol-rich extract blend, probiotics, and hydrolyzed fiber on quality of life and …

Dose: None vs: Placebo (Group I) and partial formulation (Group II) Outcome: IBS quality of life (QoL questionnaire) Effet: Dysphoria: median diff -5 (Group III) vs -1 (contr 0.0021 (dysphoria Group III)

Population: Patients with IBS

Controlled Clinical Trial

Changes in intestinal microbiota and biochemical parameters in patients with inflammatory bowel disease and irritable …

Dose: Partially hydrolyzed guar gum (PHGG) vs: Drug therapy alone Outcome: Gut bacteria ratios and inflammatory markers Effet: None None

Population: Patients with IBD or IBS on drug therapy

Controlled Clinical Trial 12.9 weeks

Role of Baseline Gut Microbiota on Response to Fiber Intervention in Individuals with Irritable Bowel …

Dose: None vs: baseline Outcome: IBS symptom improvement Effet: None None

Population: Ibs undertook a 90-day intervention and follow-up

Case Reports

Fibers in pediatric functional gastrointestinal disorders. Practical considerations from clinical cases.

Dose: None vs: None Outcome: None Effet: None None

Population: None

Randomized Controlled Trial 13.0 weeks Double-blind

Effect of Repeated Consumption of Partially Hydrolyzed Guar Gum on Fecal Characteristics and Gut Microbiota: …

Dose: None vs: Placebo Outcome: Bowel function Effet: None p=0.05

Population: healthy volunteers

Randomized Controlled Trial 12 weeks

Randomized clinical study: Partially hydrolyzed guar gum (PHGG) versus placebo in the treatment of patients …

Dose: partially hydrolyzed guar gum (PHGG) 5g/day vs: placebo Outcome: IBS-SSS and bloating severity Effet: significant improvement in overall IBS-SSS <0.05

Population: Adults with IBS

Key Statistics

Études

350

Participants

↑

Positive

Note

Referenced Papers

Effects of a polyphenol-rich extract blend, probiotics, and hydrolyzed fiber on quality of life and gut health markers in patients … Other

Frontiers in nutrition 2025 3 citations

Changes in intestinal microbiota and biochemical parameters in patients with inflammatory bowel disease and irritable bowel syndrome induced by the … Other

The journal of … 2024 2 citations

Role of Baseline Gut Microbiota on Response to Fiber Intervention in Individuals with Irritable Bowel Syndrome. Other

Nutrients 2023 3 citations

Fibers in pediatric functional gastrointestinal disorders. Practical considerations from clinical cases. Case Report

Expert review of … 2021 7 citations

Effect of Repeated Consumption of Partially Hydrolyzed Guar Gum on Fecal Characteristics and Gut Microbiota: A Randomized, Double-Blind, Placebo-Controlled, and … RCT

Nutrients 2019 68 citations

Randomized clinical study: Partially hydrolyzed guar gum (PHGG) versus placebo in the treatment of patients with irritable bowel syndrome. Other

Nutrition & metabolism 2016 61 citations

Probiotics for Irritable Bowel Syndrome: Clinical Data in Children. Systematic Review

Journal of pediatric … 2016 19 citations

Partially hydrolyzed guar gum in the treatment of irritable bowel syndrome with constipation: effects of gender, age, and body mass … Observational

Saudi journal of … 2015 32 citations

Partially hydrolyzed guar gum in pediatric functional abdominal pain. RCT

World journal of … 2013 69 citations

Role of PHGG as a dietary fiber: a review article. Review

Minerva gastroenterologica e … 2013

Role of partially hydrolyzed guar gum in the treatment of irritable bowel syndrome. Review

Nutrition (Burbank, Los … 2006 119 citations

Treatment effects of partially hydrolyzed guar gum on symptoms and quality of life of patients with irritable bowel syndrome. A … RCT

Digestive diseases and … 2005 55 citations

Partially hydrolyzed guar gum: clinical nutrition uses. Review

Nutrition (Burbank, Los … 2003 143 citations

High-fiber diet supplementation in patients with irritable bowel syndrome (IBS): a multicenter, randomized, open trial comparison between wheat bran diet … RCT

Digestive diseases and … 2002 117 citations

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Posologies couramment utilisées

general:: 5-7 g/day
ibssupport:: 5 g/day for 4-12 weeks
siboadjunct:: 5 g/day alongside antimicrobial therapy

Limite supérieure : Well-tolerated up to 36 g/day in clinical trials

Posologies étudiées dans la recherche

Posologie	Durée	Effet	N
None	8 weeks	Positive	47
Partially hydrolyzed guar gum (PHGG)	--	Positive	--
None	12.9 weeks	Positive	--
None	--	Positive	--
None	13.0 weeks	Mixed	--
partially hydrolyzed guar gum (PHGG) 5g/day	12 weeks	Positive	--
various probiotic strains	--	Mixed	--
None	4.0 weeks	Positive	--

Moment optimal de prise : Mixed into food or beverages; dissolves completely without altering texture

Safety & Side Effects

Effets indésirables signalés

⚠ Minimal gas and bloating (significantly less than other fibers)
⚠ Mild abdominal discomfort in rare cases
⚠ Loose stools at very high doses

Interactions connues

● May slow absorption of some medications (space 1-2 hours)
● Diabetes medications (may modestly affect blood glucose)

Apport maximal tolérable : Well-tolerated up to 36 g/day in clinical trials

Consultez toujours votre professionnel de santé avant de commencer tout complément alimentaire.Consultez toujours votre professionnel de santé avant de commencer tout complément alimentaire.

Frequently Asked Questions

Does Partially Hydrolyzed Guar Gum (PHGG) help with Irritable Bowel Syndrome (IBS)?

Based on 5 studies with 350 participants, there is moderate evidence from clinical studies that Partially Hydrolyzed Guar Gum (PHGG) may support Irritable Bowel Syndrome (IBS) management. Our evidence grade is B (Good Evidence).

How much Partially Hydrolyzed Guar Gum (PHGG) should I take for Irritable Bowel Syndrome (IBS)?

Studies have used various dosages. A commonly studied range is 5-7 g/day. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Partially Hydrolyzed Guar Gum (PHGG)?

Reported side effects may include Minimal gas and bloating (significantly less than other fibers), Mild abdominal discomfort in rare cases, Loose stools at very high doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Partially Hydrolyzed Guar Gum (PHGG) and Irritable Bowel Syndrome (IBS)?

We rate the evidence as Grade B (Good Evidence). This rating is based on 5 peer-reviewed studies with 350 total participants. The overall direction of effect is positive.

Related Evidence

Autres ingrédients pour Irritable Bowel Syndrome (IBS)

Peppermint Oil A Lactobacillus rhamnosus GG B Psyllium Husk B Lactobacillus plantarum B Bifidobacterium longum B Bacillus coagulans B

Partially Hydrolyzed Guar Gum (PHGG) pour d'autres pathologies

Small Intestinal Bacterial Overgrowth (SIBO) C

Verdict rapide

Reduces both IBS-C and IBS-D symptoms. Well-tolerated prebiotic that does not cause excess gas. Also shows promise for SIBO-associated symptoms.

Evidence Strength72%

High confidence

Synthèse des études

RCT (4)Meta (0)Other (1)

Comparer les alternatives

Découvrez comment d'autres ingrédients se comparent pour cette condition.Découvrez comment d'autres ingrédients se comparent pour cette pathologie.

Voir tous les ingrédients pour Irritable Bowel Syndrome (IBS)

En savoir plus

Avertissement FDA: Ces déclarations n'ont pas été évaluées par la Food and Drug Administration. Les produits et informations sur ce site ne sont pas destinés à diagnostiquer, traiter, guérir ou prévenir quelque maladie que ce soit. Les notes de preuve présentées sont basées sur notre analyse de la recherche publiée et évaluée par des pairs et ne constituent pas un avis médical. Consultez toujours votre professionnel de santé avant de commencer tout régime de compléments alimentaires.