Is oat flour keto?

Oat flour

Not keto No — oat flour is not keto-friendly.

Simply ground oats, with about 15 g net carbs per quarter cup.

Nutrition per serving

¼ cup · 26 g
Net carbs
15g
Calories
105kcal
Protein
3.8g
Fat
2.4g
Total carbs
17 g
Fiber
1.7 g
One serving vs. a 20 g daily net-carb limit 77%

About 8.4 g of oat flour adds up to 5 g net carbs — about 32% of a typical serving.

Nutrition facts for oat flour
NutrientPer servingPer 100 g
Calories105 kcal404 kcal
Total carbohydrate17 g66 g
Dietary fiber1.7 g6.5 g
Net carbs15 g59 g
Sugars 0.2 g 0.8 g
Protein3.8 g15 g
Fat2.4 g9.1 g

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Better keto swaps for oat flour

Keto flour substitutes 6 alternatives with carb comparisons and recipes Read guide

Frequently asked questions

Is oat flour keto?

No — oat flour is not keto-friendly. Simply ground oats, with about 15 g net carbs per quarter cup.

How many net carbs are in oat flour?

¼ cup (26 g) of oat flour has about 15 g net carbs (17 g total carbs minus 1.7 g fiber). Per 100 g, that's 59 g net carbs.

How much oat flour can I eat on keto?

About 8.4 g of oat flour adds up to 5 g net carbs — about 32% of a typical serving. On a typical 20 g daily limit, one serving uses about 77% of your carbs.

What is a good keto substitute for oat flour?

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Source: USDA FoodData Central (SR Legacy #169741): Oat flour, partially debranned. Net carbs = total carbohydrate − fiber. Rating: Not keto — More than about 10 g net carbs per typical serving. Swap it for a low-carb alternative. How we rate foods. Last reviewed October 18, 2026.

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