Is toffee keto?

Toffee

Not keto No — toffee is not keto-friendly.

Butter cooked with sugar until it snaps — an ounce of toffee has about 18 g net carbs. Allulose can be cooked into a keto toffee because it caramelizes like sugar.

Nutrition per serving

1 oz · 28 g
Net carbs
18g
Calories
157kcal
Protein
0.3g
Fat
9.2g
Total carbs
18 g
Fiber
0 g
One serving vs. a 20 g daily net-carb limit 91%

About 7.7 g of toffee adds up to 5 g net carbs — about 28% of a typical serving.

Nutrition facts for toffee
NutrientPer servingPer 100 g
Calories157 kcal560 kcal
Total carbohydrate18 g65 g
Dietary fiber0 g0 g
Net carbs18 g65 g
Sugars 18 g 63 g
Protein0.3 g1.1 g
Fat9.2 g33 g

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Better keto swaps for toffee

Keto substitutes for desserts & sweets 6 alternatives with carb comparisons and recipes Read guide

Frequently asked questions

Is toffee keto?

No — toffee is not keto-friendly. Butter cooked with sugar until it snaps — an ounce of toffee has about 18 g net carbs. Allulose can be cooked into a keto toffee because it caramelizes like sugar.

How many net carbs are in toffee?

1 oz (28 g) of toffee has about 18 g net carbs (18 g total carbs minus 0 g fiber). Per 100 g, that's 65 g net carbs.

How much toffee can I eat on keto?

About 7.7 g of toffee adds up to 5 g net carbs — about 28% of a typical serving. On a typical 20 g daily limit, one serving uses about 91% of your carbs.

What is a good keto substitute for toffee?

More sweets & desserts

Full sweets & desserts list

Source: USDA FoodData Central (SR Legacy #169671): Candies, toffee, prepared-from-recipe. 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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