Cornstarch has a high glycemic index of 85 (typical range 80 to 92). A serving of 30 g (about 1/4 cup) has a glycemic load of 23, which is high. Per 100 g it provides 381 calories, 0.3 g protein, 91.3 g carbohydrate (0.9 g fiber, 0 g sugars) and 0.1 g fat.
Serving used for glycemic load: 30 g (about 1/4 cup).
| Nutrient | Per 100 g | Per serving |
|---|---|---|
| Calories | 381 kcal | 114 kcal |
| Protein | 0.3 g | 0.1 g |
| Carbohydrate | 91.3 g | 27.4 g |
| Fiber | 0.9 g | 0.3 g |
| Sugars | 0 g | 0 g |
| Fat | 0.1 g | 0 g |
| Saturated fat | 0 g | 0 g |
| Sodium | 9 mg | 3 mg |
| Potassium | 3 mg | 1 mg |
Other flours with a lower glycemic load per serving:
| Food | GI | GL / serving |
|---|---|---|
| Rice Flour | 72 | 17 |
| Arrowroot | 68 | 2 |
Cornstarch has a glycemic index of 85, which is high (low is 55 or under, high is 70 or over). The glycemic load of a 30 g (about 1/4 cup) serving is 23, which is high.
Glycemic load is the better guide, because it accounts for portion size. A serving of cornstarch has a glycemic load of 23 (high). Eating it with protein, fat or fiber slows absorption further. This is general information, not medical advice; people with diabetes should follow their clinician's guidance.
Cornstarch has 381 calories per 100 g, and about 114 calories in a 30 g (about 1/4 cup) serving.
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Open the free web appGlycemic index: NutriOptio's reference table, compiled from the University of Sydney GI database and the international tables of glycemic index and glycemic load; the range reflects variation across studies, ripeness and preparation. Nutrition: USDA FoodData Central, SR Legacy, “Cornstarch” (FDC 169698). Glycemic load = GI × available carbohydrate (carbohydrate minus fiber) per serving ÷ 100. Nutri-Score computed with the 2017 general-food algorithm.
General information, not medical advice.
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