Is cornstarch keto?
Cornstarch
Pure starch — a tablespoon is about 7 g net carbs. Thicken with xanthan gum, cream or cheese instead.
Nutrition per serving
1 tbsp · 8 g- Net carbs
- 7.2g
- Calories
- 30kcal
- Protein
- 0g
- Fat
- 0g
- Total carbs
- 7.3 g
- Fiber
- 0.1 g
About 5.5 g of cornstarch adds up to 5 g net carbs — about 69% of a typical serving.
| Nutrient | Per serving | Per 100 g |
|---|---|---|
| Calories | 30 kcal | 381 kcal |
| Total carbohydrate | 7.3 g | 91 g |
| Dietary fiber | 0.1 g | 0.9 g |
| Net carbs | 7.2 g | 90 g |
| Sugars | 0 g | 0 g |
| Protein | 0 g | 0.3 g |
| Fat | 0 g | 0.1 g |
Portion calculator
Open carb counter →- Net carbs
- – g
- Calories
- –
- Protein
- – g
- Fat
- – g
0% of your 20 g daily net-carb limit. Personalize
Better keto swaps for cornstarch
Keto substitutes for cornstarch & flour thickeners 5 alternatives with carb comparisons and recipes Read guide Low-carb recipes that replace cornstarch
Frequently asked questions
Is cornstarch keto?
No — cornstarch is not keto-friendly. Pure starch — a tablespoon is about 7 g net carbs. Thicken with xanthan gum, cream or cheese instead.
How many net carbs are in cornstarch?
1 tbsp (8 g) of cornstarch has about 7.2 g net carbs (7.3 g total carbs minus 0.1 g fiber). Per 100 g, that's 90 g net carbs.
How much cornstarch can I eat on keto?
About 5.5 g of cornstarch adds up to 5 g net carbs — about 69% of a typical serving. On a typical 20 g daily limit, one serving uses about 36% of your carbs.
What is a good keto substitute for cornstarch?
Try xanthan gum, heavy cream, egg yolks. See our full guide: keto substitutes for cornstarch & flour thickeners.
