Is erythritol keto?

Erythritol

Keto-friendly Yes — erythritol is keto-friendly.

A sugar alcohol with zero net carbs and no blood-sugar impact. About 70% as sweet as sugar, with a cooling aftertaste in large amounts.

Nutrition per serving

1 tsp · 4 g
Net carbs
0g
Calories
1kcal
Protein
0g
Fat
0g
Total carbs
4 g
Fiber
0 g
One serving vs. a 20 g daily net-carb limit 0%

Erythritol has virtually no net carbs, so portion size is about calories and fullness, not carbs.

Nutrition facts for erythritol
NutrientPer servingPer 100 g
Calories1 kcal20 kcal
Total carbohydrate4 g100 g
Dietary fiber0 g0 g
Non-impact carbs (sugar alcohols) 4 g 100 g
Net carbs0 g0 g
Protein0 g0 g
Fat0 g0 g

Portion calculator

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How to eat erythritol on keto

  • Use powdered erythritol for frostings and smooth desserts — granulated can stay gritty.
  • Some research has linked high blood erythritol levels to cardiovascular risk; if that concerns you, rotate in allulose or stevia.

Keto recipes with erythritol

Frequently asked questions

Is erythritol keto?

Yes — erythritol is keto-friendly. A sugar alcohol with zero net carbs and no blood-sugar impact. About 70% as sweet as sugar, with a cooling aftertaste in large amounts.

How many net carbs are in erythritol?

1 tsp (4 g) of erythritol has about 0 g net carbs (4 g total carbs minus 0 g fiber and non-impact sweeteners). Per 100 g, that's 0 g net carbs.

How much erythritol can I eat on keto?

Erythritol has virtually no net carbs, so portion size is about calories and fullness, not carbs. On a typical 20 g daily limit, one serving uses about 0% of your carbs.

What is a good keto substitute for erythritol?

See our full guide: keto sugar substitutes.

More sweeteners

Full sweeteners list

Source: Erythritol is absorbed but not metabolized (≈0.2 kcal/g) and does not raise blood glucose; subtracted from net carbs. Net carbs = total carbohydrate − fiber − erythritol/allulose (non-impact sweeteners). Rating: Keto-friendly — Low in net carbs per typical serving (about 5 g or less). Fits easily into a 20–30 g daily limit. How we rate foods. Last reviewed October 18, 2026.

Typical price: about $8.98/lb — Our estimate of a typical supermarket price: $8.99 for 16 oz bag. How we estimate prices

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