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Foods / Grains & Starches

Is Cornflakes keto?

Not keto-friendly

No, cornflakes is not keto-friendly. A serving (1 cup (28 g)) has about 22.6 g of net carbs, about 90% of a typical 25 g daily limit.

Share of a 25 g net-carb day90%

The short answer

Breakfast cereals are mostly refined carbs and sugar.

A typical serving is 1 cup (28 g). That has 100 calories, 2.1 g protein, 0.1 g fat and 22.6 g net carbs (23.5 g total carbs − 0.9 g fiber).

How many servings fit in your carb budget?

0servings at 20 g/day
1servings at 25 g/day
2servings at 50 g/day

Based on using your entire daily net-carb limit on this one food, which you would not do in practice.

Lower-carb swaps for cornflakes

Nutrition facts

Serving size1 cup (28 g)
Calories100
Total fat0.1 g
Total carbohydrate23.5 g
Dietary fiber0.9 g
Net carbs22.6 g
Protein2.1 g

Per 100 g: 357 kcal · 80.7 g net carbs · 7.5 g protein · 0.4 g fat. Estimates vary by brand and preparation.

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Frequently asked questions

Is cornflakes keto?

No, cornflakes is not keto-friendly. A serving (1 cup (28 g)) has about 22.6 g of net carbs, about 90% of a typical 25 g daily limit.

How many carbs are in cornflakes?

A serving of cornflakes (1 cup (28 g)) has about 23.5 g of total carbohydrates and 0.9 g of fiber, which works out to roughly 22.6 g of net carbs. Per 100 g it has about 80.7 g of net carbs.

Can I eat cornflakes on a keto diet?

Most people on keto avoid it. Breakfast cereals are mostly refined carbs and sugar. If you want to fit it in, treat it as an occasional small portion and count the carbs.

What can I eat instead of cornflakes?

Lower-carb swaps include cauliflower, zucchini, shirataki noodles, spaghetti squash (cooked).

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More grains & starches

Oats (dry rolled)Grains & Starches½ cup (40 g)22.2g netNot keto-friendly
All-purpose flourGrains & Starches¼ cup (30 g)22g netNot keto-friendly
Flour tortillaGrains & Starches1 medium (49 g)23.5g netNot keto-friendly
PretzelsGrains & Starches1 oz (28 g)21.6g netNot keto-friendly
French friesGrains & Starches1 small serving (71 g)26.4g netNot keto-friendly
Quinoa (cooked)Grains & Starches½ cup (93 g)17.2g netNot keto-friendly
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