Are Cornflakes Keto?

Cereals & Grains
Cornflakes sticker illustration
KETO VERDICTAVOID

Cornflakes are difficult to fit as a normal keto cereal bowl: this estimate is 85.3g net carbs per 100 g. Even a 10 g portion contributes about 8.5g toward a 20–25 g daily budget before milk. A small crunchy topping is easier to budget than an unweighed bowl.

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YOUR PORTION

How much are you having?

Per 100 g (as listed by source). Curated estimate; estimated values.

Scales this reference to your portion, with no extra deductions. Calculation and units.

85.3gnet carbs in your portion

Total carbs
88g
Fiber
2.7g
Protein
8g
Fat
1g
Calories
380
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  • Net carbs (100 g)85.3g
  • Protein (100 g)8g
  • Fat (100 g)1g
  • Keto verdictAvoid on keto

NUTRITION FACTS

Per 100 g (as listed by source)

Net Carbs
85.3g
Total Carbs
88g
Fiber
2.7g
Protein
8g
Fat
1g
Calories
380

Source: Curated estimate

Source fit: curated estimate; not an exact source match

Net-carb calculation: total carbohydrate - fiber

A USDA reference record exists, but the displayed basis or macros do not directly reproduce it, so KetoLens does not attribute these values to USDA. Check the current label for packaged products.

Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.

WHY IT'S NOT KETO-FRIENDLY

  • Weigh cornflakes before pouring milk over them. A bowl describes the container, not the amount of cereal, and broken flakes can settle more densely than whole flakes.
  • Check plain, frosted and flavored varieties separately. The cornflake shape is shared by products with different coatings, recipes and serving information.
  • If crushing cereal for a coating or dessert base, record the amount added to the recipe. Fine crumbs can disappear visually into a mixture while remaining part of its carbohydrate total.

PREPARATION SUGGESTIONS

REPLACE THE BREAKFAST CRUNCH

Build a measured topping from plain nuts or unsweetened coconut instead of filling the bowl with flakes. Use the chosen topping’s panel and count the liquid or yogurt base separately.

Better keto swaps

  • Coconut Flakes — 7.3g net carbs per 100 g (reference). Unsweetened flakes give a cereal-like topping texture; check baking coconut carefully for added sugar.
  • Pecans — 4.3g net carbs per 100 g (reference). Chopped plain pecans can provide breakfast crunch with a different flavor. Weigh the nuts before combining them with the bowl’s other ingredients.
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