Partially Hydrolyzed Guar Gum
herbs
Partially hydrolyzed guar gum (PHGG) is a soluble fibre derived from guar beans that has been enzymatically broken down to improve digestibility and reduce gas production. It functions as a prebiotic, promoting beneficial gut bacteria whilst supporting digestive health and regularity. PHGG is well-tolerated and commonly used to manage both constipation and diarrhoea.
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Benefits
Dosage
Typical Dose
5-10 grams daily
Upper Limit
15 grams daily
Timing
With meals, divided into 2-3 doses
Forms & Bioavailability
Powder
High; readily disperses in liquids and mixes well with food
Capsules
Moderate; convenient dosing but may require multiple capsules
Side Effects
Interactions
Research Summary
PHGG has demonstrated efficacy in clinical trials for managing irritable bowel syndrome symptoms, improving stool consistency, and promoting beneficial Bifidobacteria growth. Studies show it is superior to standard guar gum due to reduced fermentation and bloating. Evidence supports its use as a safe, well-tolerated dietary fibre intervention for digestive health.
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The Bottom Line on Partially Hydrolyzed Guar Gum
Partially Hydrolyzed Guar Gum is moderately researched with promising but sometimes mixed evidence.It is most commonly used for supports digestive regularity and promotes prebiotic activity. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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Goal Guides for Partially Hydrolyzed Guar Gum
See how Partially Hydrolyzed Guar Gum can help with specific health goals: