Are soba noodles keto?

Soba noodles

Not keto No — soba noodles are not keto-friendly.

Japanese buckwheat noodles are usually blended with wheat flour — a cooked cup has about 24 g net carbs. Cold shirataki or kelp noodles with the same dipping sauce make a keto zaru soba.

Nutrition per serving

1 cup cooked · 114 g
Net carbs
24g
Calories
113kcal
Protein
5.8g
Fat
0.1g
Total carbs
24 g
Fiber
0 g
One serving vs. a 20 g daily net-carb limit 122%

About 23.4 g of soba noodles adds up to 5 g net carbs — about 20% of a typical serving.

Nutrition facts for soba noodles
NutrientPer servingPer 100 g
Calories113 kcal99 kcal
Total carbohydrate24 g21 g
Dietary fiber0 g0 g
Net carbs24 g21 g
Protein5.8 g5.1 g
Fat0.1 g0.1 g

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Better keto swaps for soba noodles

Keto substitutes for pasta & noodles 7 alternatives with carb comparisons and recipes Read guide

Frequently asked questions

Are soba noodles keto?

No — soba noodles are not keto-friendly. Japanese buckwheat noodles are usually blended with wheat flour — a cooked cup has about 24 g net carbs. Cold shirataki or kelp noodles with the same dipping sauce make a keto zaru soba.

How many net carbs are in soba noodles?

1 cup cooked (114 g) of soba noodles has about 24 g net carbs (24 g total carbs minus 0 g fiber). Per 100 g, that's 21 g net carbs.

How much soba noodles can I eat on keto?

About 23.4 g of soba noodles adds up to 5 g net carbs — about 20% of a typical serving. On a typical 20 g daily limit, one serving uses about 122% of your carbs.

What is a good keto substitute for soba noodles?

More grains, bread & snacks

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Source: USDA FoodData Central (SR Legacy #168907): Noodles, japanese, soba, cooked. 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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