Blueberry fiber

PrebioticBest with a meal

What is it

Blueberry fiber is a powder made from the seeds, skins, and pomace left after juicing blueberries. It is sold as a source of insoluble fiber with residual polyphenols.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Dietary fiber intake

Good Evidence

Adequate fiber from any plant source supports bowel regularity and is associated with cardiometabolic benefits.

How it works

Blueberry fiber is mostly cellulose and other plant cell wall polysaccharides, with small amounts of anthocyanins and proanthocyanidins remaining from the original fruit. Like other insoluble fibers, it adds bulk to stool, can speed transit time, and may serve as a substrate for limited colonic fermentation. Residual polyphenols may add modest antioxidant value, but the polyphenol concentration is far lower than in whole or extract forms of blueberry.

Dosage

DSLD does not list a single standardized dose. Typical supplement servings provide 2-5 g of blueberry fiber, often as part of a fiber blend. General fiber targets are 25-38 g per day from all sources.

When and how to take it

Can be taken with meals or mixed into shakes. Distribute fiber across the day to minimize GI discomfort.

1 commercial form

Compare the main delivery options and what they’re best suited for.

Blueberry pomace powder

Used in fiber blends and superfood powders.

Insoluble fiber with trace polyphenols

Safety

Generally well tolerated. As with any added fiber, increasing too quickly can cause bloating, gas, and discomfort. Take with adequate water.

Who should be cautious

People with bowel disorders such as strictures or severe IBS may need to titrate slowly. Increase water intake when adding fiber.

Interactions

Fiber can slightly reduce absorption of co-administered medications and minerals. Separate from medications by a few hours when practical.

Food sources

Whole blueberries

Amount
1 cup (~3.6 g fiber)
%DV
13%

Frequently asked questions

Is it the same as blueberry extract?⌄

No. Fiber comes from the skins and seeds. Extracts concentrate the polyphenols and contain little fiber.

Will it color my stool?⌄

Possibly. Residual anthocyanins can produce a temporary purple tint, which is harmless.

References

Blueberry fiber on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Blueberry fiber (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.