What can you say about acacia fiber in your ads and on your site?

The library supports 2 wordings for acacia fiber; the strongest is “A prebiotic fibre that helps feed beneficial gut bacteria such as bifidobacteria” (moderate, 10-20 g a day). Avoid wording that names or implies a disease, a drug or a treatment, such as “Relieves IBS”.

Also called: Acacia, Acacia gum, Gum arabic, Senegalia senegal, Vachellia seyal

Reviewed 14 October 2026

Not legal advice. This guide shows the wording that published evidence supports at a daily dose, from the sources linked below; it is not a ruling on any claim. Your own product, its form and dose, and your own evidence still need to match the wording you use.

Supported wordings

What you can say.

Moderate evidenceWording 1

Claims Facts

“A prebiotic fibre that helps feed beneficial gut bacteria such as bifidobacteria.”

Daily dose	10-20 g a day
Support	Health Canada lists it at 10-20 g a day, citing human studies; no other listed source covers it.
Dose details	Adults 18 and older.
Form	Acacia gum
Source	Health Canada monograph: Prebiotics

Moderate evidenceWording 2

Claims Facts

“A source of fibre that supports a healthy digestive system and digestive regularity.”

Daily dose	2.5-20 g a day
Support	Health Canada lists it; no other listed source covers it.
Dose details	Adults 18 and older, as part of a fibre-containing diet for the regularity wording. Health Canada: at least 4 g of fibre a day may be called a high source and 6 g a very high source.
Form	Acacia gum
Source	Health Canada monograph: Prebiotics

How strong the evidence is

Strong evidence: At least two listed sources support it independently at a comparable dose and form, and none disagrees.
Moderate evidence: One listed source supports it as an evidence-based use at that dose, and no listed source disagrees.
Limited evidence: The only support is traditional use, the sources disagree, or the source itself calls the evidence weak.

Wordings to avoid

What to leave out.

Claims Facts

Ingredient: Acacia fiber

Wording to avoid	Reason
“Relieves IBS”Names a disease.	Disease
“Relieves constipation”Health Canada lists no constipation dose for acacia, and FDA’s 2000 rule clears only the ‘occasional’ form.	Treatment

Disease: names or implies a disease. Drug: names a drug or presents the product as one. Treatment: promises to treat, cure or prevent a condition.

Sources

Where this comes from.

Health Canada monograph: Prebiotics

All ingredient guides

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