Fiber

PHGG (Partially Hydrolyzed Guar Gum)

Also known as: Sunfiber, PHGG, Hydrolyzed guar

Evidence

Processed guar fiber that's gentle, well-tolerated, and shown to help IBS and SIBO.

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Primary uses

IBS support
SIBO-friendly
Regularity
Gentle prebiotic

How it works

Very well-tolerated
Helps both constipation and diarrhea
Feeds beneficial bacteria
Doesn't excessively ferment

Dosage

Typical range: 5-10g daily
Timing: Any time
With food: Either way, dissolves in any beverage
Duration: Ongoing for gut health
Special populations: IBS, SIBO, those intolerant to other fibers

Forms

Powder (Sunfiber)
Capsules

Safety

Common side effects

Very minimal
Occasionally mild gas

Contraindications

None known

Products containing PHGG (Partially Hydrolyzed Guar Gum)

Top-scoring supplements in our catalog that list PHGG (Partially Hydrolyzed Guar Gum) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.

Daily Greens by Complement

Thorne

FiberMend®

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Evidence notes

Good evidence especially for IBS

Grade A: Multiple well-designed human trials support the main claims.

Related in Fiber

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.