Fiber

PHGG (Partially Hydrolyzed Guar Gum)

Also known as: Sunfiber, Partially hydrolyzed guar gum

Evidence

Low-FODMAP prebiotic fiber that's well-tolerated even by those with IBS. Minimal gas and bloating.

Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.

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Primary uses

IBS support
Regularity
SIBO-friendly prebiotic
Gut health

How it works

Fermented slowly - less gas
Feeds beneficial bacteria
Regulates transit time

Dosage

Typical range: 5-7 g daily
Timing: Any time
With food: Can add to any food/drink
Duration: Well-tolerated from start
Special populations: IBS, SIBO, sensitive digestion

Forms

Powder
Capsules

Safety

Common side effects

Minimal even in sensitive

Contraindications

None

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

Well-tolerated prebiotic for sensitive guts

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. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.