All buyer's guides
Updated 2026

Best keto sugar substitutes

Sweetness with zero net carbs and no blood-sugar spike.

The right sweetener lets you bake, sweeten coffee and make dessert without leaving keto. These all measure close to 1:1 with sugar and contribute 0 net carbs — ranked by taste and how cleanly they bake.

At a glance

#ProductNet carbsProteinCalPrice
1
Lakanto
Monk Fruit Sweetener
0g0g0~$10/bagBuy →
2
Swerve
Erythritol Sweetener
0g0g0~$8/bagBuy →
3
RxSugar
Allulose Sweetener
0g0g0~$13/bagBuy →
4
Truvia
Stevia Sweetener Blend
0g0g0~$7/bagBuy →

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The picks, ranked

1.
Lakanto

Monk Fruit Sweetener

1:1 sugar swap, zero glycemic impact, zero net carbs.

0g net carbs0g protein~$10/bag
View on Amazon
2.
Swerve

Erythritol Sweetener

Measures 1:1 like sugar, 0 net carbs, great for baking.

0g net carbs0g protein~$8/bag
View on Amazon
3.
RxSugar

Allulose Sweetener

Tastes like sugar, 0 net carbs, won't spike blood sugar.

0g net carbs0g protein~$13/bag
View on Amazon
4.
Truvia

Stevia Sweetener Blend

Stevia-based, 0 calories, widely available, baking-friendly.

0g net carbs0g protein~$7/bag
View on Amazon

Frequently asked

What is the best keto sweetener?+

Monk fruit (Lakanto) and allulose (RxSugar) taste closest to sugar with no aftertaste. Erythritol blends (Swerve) are best for baking and bulk.

Do sugar substitutes raise blood sugar?+

Monk fruit, allulose, erythritol and stevia have minimal-to-no impact on blood sugar, which is why they're keto- and GLP-1-friendly.

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