
Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Partially Hydrolyzed Guar Gum (PHGG) is a soluble fiber derived from guar beans that supports digestive health through selective fermentation by beneficial gut bacteria. PHGG acts as a prebiotic by increasing short-chain fatty acid production and promoting Bifidobacteria growth.

Reported Benefits (Provisional)
Origin & History

Partially Hydrolyzed Guar Gum (PHGG) is a soluble dietary fiber derived from guar beans. It is produced by hydrolyzing guar gum to reduce viscosity while retaining its beneficial properties.
Research Narrative (Provisional)
RCTs have shown PHGG's benefits in promoting digestive health and managing IBS symptoms. Studies confirm its safety and efficacy as a dietary fiber.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
PHGG is a soluble dietary fiber derived from guar gum through enzymatic hydrolysis, with a lower molecular weight (20,000–60,000 Da) than native guar gum, improving solubility and tolerability. It is composed primarily of galactomannan polysaccharides (approximately 75–85% by dry weight), consisting of a mannose backbone with galactose side chains in a roughly 2:1 ratio. As a purified fiber ingredient, it contains negligible protein (<2%), fat (<1%), and minimal micronutrients. Caloric contribution is approximately 1.5–2 kcal/g due to partial fermentation by gut microbiota. Its key bioactive property is its high soluble fiber content, which forms a viscous gel in the gut, slowing gastric emptying. Fermentability is high — colonic bacteria ferment PHGG into short-chain fatty acids (SCFAs), primarily butyrate, propionate, and acetate, at estimated yields of 40–60 mmol/100g fiber. Bioavailability of the intact polysaccharide is negligible; its effects are mediated through fermentation and SCFA production rather than systemic absorption.
Reported Mechanism (Provisional)
PHGG undergoes selective fermentation in the colon by beneficial bacteria, particularly Bifidobacteria and Lactobacilli, producing short-chain fatty acids like butyrate, acetate, and propionate. These SCFAs lower colonic pH, inhibit pathogenic bacteria growth, and enhance intestinal barrier function through tight junction protein upregulation. The low viscosity of PHGG allows for better tolerance while maintaining prebiotic effects compared to regular guar gum.
Clinical Narrative (Provisional)
Multiple randomized controlled trials with 40-200 participants demonstrate PHGG's efficacy for digestive health. Studies show 5-15g daily reduces constipation by 40-50% and increases bowel movement frequency within 2-4 weeks. Clinical trials report significant increases in Bifidobacteria populations and improved stool consistency scores. Evidence is strongest for digestive benefits, with moderate-quality studies supporting prebiotic effects.
Also Known As
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