Product check · Fiber One

Is Fiber One Oats & Chocolate Chewy Bars low FODMAP?

FODMAP score

High FODMAP

No — this is one of the highest-FODMAP snack bars on the shelf. Chicory root extract is the very first ingredient, and chicory root is concentrated inulin, a fast-fermenting fructan that commonly sets off gas and bloating in sensitive guts. One bar delivers roughly 9g of fiber, most of it from that inulin, with a little fructose and barley malt extract stacked on top.

What's inside

Chicory root extractFirst ingredient on the label. Chicory root is essentially pure inulin, a fructan that gut bacteria ferment rapidly — one bar carries a fructan load many low-FODMAP eaters notice.

FructoseAdded straight fructose appears lower on the list. The amount is small, but excess fructose stacks on top of the inulin load.

Barley malt extractContributes trace fructans. Minor on its own, but it adds to the total in an already fructan-heavy bar.

Corn syrupPlain corn syrup (not high-fructose) is mostly glucose chains, which are low FODMAP.

Whole grain oatsOats are low FODMAP at the quantity found in one bar.

📏 Even one bar (about 40g) carries a large inulin dose — this is a product where a single serving is the problem, not overeating. The 'gradual fiber' advice on the box exists for a reason.

Gentler alternatives

↳Fody dark chocolate nuts & sea salt bar — Built without chicory root, inulin, or excess-fructose sweeteners, so you keep the chocolate-bar format without the fructan bomb.

↳Nature Valley Crunchy Peanut Butter bar — A simple oats, sugar, and peanut butter recipe with no chicory root — generally well tolerated as a single-bar portion.

↳Rice cake with natural peanut butter — Hits the same sweet-crunchy snack slot with only low-FODMAP components.

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Based on the publicly listed ingredients at time of review; recipes change — check the label. Informational only, not medical advice. FODMAP tolerance is individual.

Serving it alongside other foods? Check your whole plate for stacking →

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