Partially Hydrolyzed Guar Gum (PHGG) is a water-soluble prebiotic fiber derived from guar beans through an enzymatic process that makes it easy to dissolve and well-tolerated compared to many other fiber supplements. Research suggests that PHGG may support digestive health by serving as a fermentable substrate for beneficial gut bacteria, promoting the production of short-chain fatty acids like butyrate. Studies indicate it has been explored for a range of gastrointestinal concerns, including relief from both constipation and diarrhea, suggesting a regulatory rather than one-directional effect on bowel function. Clinical research has also examined its potential role in supporting individuals with irritable bowel syndrome and in helping moderate post-meal blood sugar responses, though findings vary across study populations and designs.
Compare this supplementResearch suggests that partially hydrolyzed guar gum (PHGG) may help manage diarrhea across several different populat...
View studies →Research suggests that partially hydrolyzed guar gum (PHGG) may help relieve common IBS symptoms, with a 12-week mult...
View studies →Research suggests that partially hydrolyzed guar gum (PHGG) may offer meaningful benefits for gut health, with eviden...
View studies →The single study provided does not contain relevant research on Partially Hydrolyzed Guar Gum or blood sugar regulati...
View studies →Research suggests that partially hydrolyzed guar gum (PHGG) may help relieve constipation by improving stool moisture...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Powder | 4–10 g | Daily | Blood sugar regulation and glycemic control | Used in clinical trials examining postprandial glucose and insulin response |
| Powder | 10–20 g | Daily | Constipation relief | Used in clinical trials for chronic constipation management |
| Powder | 5–10 g | Daily | Diarrhea management | Studied in RCTs for tube-fed patients and acute diarrhea reduction |
| Powder | 5–6 g | Daily | IBS relief and general gut health | Common in multiple RCTs studying IBS symptoms and bowel regularity |