Hosting Thanksgiving? Get the free keto game plan.

Hidden carbs / Fiber & gum

Is oat fiber keto?

Keto-friendlyFiber: subtract it

Yes. Ground oat hulls: almost pure insoluble fiber. Not to be confused with oat flour.

What it is

Oat fiber is made from the outer hull of the oat, not the grain, so it is almost pure insoluble fiber with essentially no net carbs. Keto bakers use it to add bulk and a flour-like texture.

Oat flour is ground whole oats and is high in starch. The two are easy to confuse on a label.

How to count it

It is fiber, so subtract it from total carbs like any other fiber.

Mostly not digested, so they are subtracted from total carbs. A couple are debated.

Where you will find it

  • Keto baking mixes
  • Low-carb bread and tortillas

Also listed as

oat fibreoat hull fiberoat hull fibre
Free tool

Paste a whole label

The label decoder flags every sugar, starch, sugar alcohol and fiber in an ingredient list, and tells you how to count each one. It runs on your device.

Open the label decoder

General nutrition information, not medical advice. Products and formulas change, so check the nutrition panel too. If you manage diabetes or take medication that affects blood sugar, ask your doctor how to count these ingredients. See our health disclaimer.

Quick answers

Is oat fiber keto?

Yes. Ground oat hulls: almost pure insoluble fiber. Not to be confused with oat flour.

Does oat fiber count toward net carbs?

Fiber: subtract it. It is fiber, so subtract it from total carbs like any other fiber.

What is oat fiber?

Oat fiber is made from the outer hull of the oat, not the grain, so it is almost pure insoluble fiber with essentially no net carbs. Keto bakers use it to add bulk and a flour-like texture.

What other names does it go by on a label?

oat fibre, oat hull fiber, oat hull fibre.

The Keto Tuxedo letter

One great recipe a week

Plus the free Keto Dress Code, with the hidden-carb traps to watch for when you eat out.

No spam, ever. Unsubscribe in one click. By subscribing you agree to our privacy policy.