A 2019 Nutrients clinical trial from Japan has revealed new insights into how partially hydrolysed guar gum (PHGG) supports gut health and stool consistency in people prone to loose stools.

What Is PHGG Powder?

If you’ve ever wondered what is PHGG powder, it’s a type of soluble dietary fibre derived from guar beans. Unlike many harsh fibres, PHGG dissolves easily in water, mixes clear, and is gentle on digestion. It acts as a prebiotic, feeding beneficial gut bacteria that support healthy bowel movements and a balanced microbiome.

The Study: PHGG and Gut Function

Researchers conducted a randomised, double-blind, placebo-controlled trial involving 44 adults with a tendency toward soft or loose stools. Participants took 5 grams of PHGG daily for 12 weeks.

The results were impressive:

• Stool form normalised significantly on the Bristol Stool Scale (BSS).

• The PHGG group had more Bifidobacterium — the beneficial bacteria linked with gut balance.

• Participants reported improved comfort and quality of life compared to placebo.

The study concluded that PHGG improves stool consistency and may help normalise gut function through microbiota modulation, particularly by increasing Bifidobacterium and reducing Bacteroides, both critical for digestive stability.

Why PHGG Fibre Works

Unlike insoluble fibres that can aggravate bloating or discomfort, PHGG fibre is soothing and well-tolerated. It gently regulates stool consistency without speeding up bowel movements, making it useful for both constipation and diarrhea-prone individuals.

PHGG’s fermentation produces short-chain fatty acids (SCFAs) like butyrate, which fuel colon cells and support a healthy gut barrier. These compounds are key in maintaining hydration, nutrient absorption, and overall digestive comfort.

Choosing the Best PHGG Supplement

For those seeking the best PHGG supplement, look for a pure, unflavoured powder that’s easily dissolvable and free from artificial fillers. A daily 5-gram serving mixed into water or smoothies is typically enough to support digestive balance, gut microbiota diversity, and regularity.

To start your gut-health journey, explore premium PHGG powder and experience a gentler, evidence-based way to restore digestive harmony.

This article is for educational purposes only. Consult your healthcare professional for personalised advice.