Most people know fibre is good for digestion — but not all fibres behave the same way. 

Some are too harsh, some cause bloating, and others do very little. Partially Hydrolysed Guar Gum (PHGG) is different. 

It’s a gentle, low-viscosity, highly fermentable soluble fibre backed by clinical research and used in hospitals worldwide.

A 2017 review published in Nutrición Hospitalaria (read it on PubMed here) examined the evidence for PHGG and where it fits within the world of dietary fibres.

What Makes PHGG Unique?

PHGG is made by partially breaking down guar gum using a specific enzyme. 

This process turns it into a smooth, taste-free, non-gelling fibre that dissolves easily in water and is incredibly gentle on the gut.

Unlike many fibres, PHGG does not cause thick gels, excess gas, or bloating. Instead, it:

• Ferments slowly and steadily
• Produces beneficial short-chain fatty acids (SCFAs)
• Supports microbial balance
• Helps maintain healthy bowel movements — both too fast and too slow

It’s one of the most versatile fibres available.

Strongest Evidence: Diarrhoea Associated With Enteral Nutrition

PHGG is one of the few fibres recommended by both ESPEN and ASPEN — the world’s leading clinical nutrition societies — for patients experiencing diarrhoea during enteral (tube) feeding.

Clinical studies repeatedly show PHGG can:

• Improve stool consistency
• Reduce frequency of loose stools
• Support better nutrient absorption
• Improve tolerance to enteral feeds

This makes PHGG a trusted ingredient in hospitals, ICUs, and aged-care facilities.

Emerging Benefits: From Gut Health to Metabolic Support

While the evidence for enteral-nutrition diarrhoea is strongest, research also shows promising results in several other areas:

1. IBS & Digestive Comfort

PHGG helps normalise bowel movements and can reduce both constipation and diarrhoea — making it valuable for IBS sufferers.

2. Blood Sugar Balance

Studies suggest PHGG can reduce post-meal glucose spikes and support better glycaemic control.

3. Cholesterol Support

PHGG may help reduce LDL cholesterol, supporting cardiovascular health.

4. Small Intestinal Bacterial Overgrowth (SIBO)

Because it is very low-FODMAP and well tolerated, PHGG may help rebalance gut bacteria without triggering SIBO symptoms.

More high-quality human trials are needed, but current data is encouraging.

Where to Buy PHGG

If you’re wondering where to buy partially hydrolyzed guar gum, you can find premium, clinically supported PHGG.

It’s taste-free, dissolves instantly, and is suitable for everyday digestive support.

Takeaway

PHGG isn’t just another fibre. 

It’s a clinically validated, gentle prebiotic used in hospitals and increasingly valued by health-conscious consumers. 

Whether you’re supporting gut comfort, restoring microbiome balance, or seeking a well-tolerated daily fibre, PHGG is a smart option backed by science.

Disclaimer

This article is for educational purposes only and is not medical advice. Always consult your healthcare professional for personalised guidance. Wonder Foods provides high-quality natural products but does not diagnose, treat, or cure medical conditions.