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not keto

corn flour

Grain

Also: maize flour

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Is corn flour keto?

corn flour is not keto: it has ~20 g of net carbs per 1/4 cup, against the keto diet's 5 g-per-serving limit.

Net carbs = total − fiber

20 g

per 1/4 cup

These are the carbs that count on keto: total carbs minus fiber.

With nearly 21 grams of net carbs per small 30-gram serving, corn flour is extremely high in carbohydrates and will easily kick you out of ketosis.

Nutrition facts for corn flour

1.3 g
Fat
2.3 g
Protein
2.1 g
Fiber

How many carbs are in corn flour?

corn flour has ~23 g of carbs and ~20 g of net carbs per 1/4 cup (total carbs minus 2 g of fiber).

Why corn flour is not keto?

On keto the goal is to stay under ~5 g of net carbs per serving; corn flour has 20 g per 1/4 cup (23 g total − 2 g of fiber).

How much corn flour can I eat on keto?

To stay under 5 g of net carbs, the limit is ~7 g of corn flour.

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Related

Source: nutritional estimate (USDA-style reference) · Confidence: high
Reviewed by the Ketorai team · Last updated: September 13, 2026 · How we assign the verdict
For information only. This does not replace advice from a health professional.
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