Cornstarch - How Many Calories?

Reviewed by Dyt. Şeyda Ertaş, Registered Dietitian Last reviewed: May 16, 2026

Cornstarch

8 gr
Cornstarch image
30 kcal
Carbohydrate 7.3 gr %96
Protein 0.02 gr %0
Fat 0.01 gr %0

Cornstarch Nutrition Values

Nutrients 100 gr 1 1 Teaspoon
Calories (kcal) 381 30
Carbohydrate (g) 91.3 7.3
Protein (g) 0.3 0.02
Fat (g) 0.1 0.01
Fiber (g) 0.9 0.07
Cholesterol (mg) 0 0
Sodium (mg) 9 0.72
Potassium (mg) 3 0.24
Calcium (mg) 2 0.16
Iron (mg) 0.47 0.04
Vitamin A (IU) 0 0
Vitamin C (mg) 0 0

Nutritional values are based on the USDA database. Natural variations may occur; this information is for informational purposes only and does not constitute medical advice.

Dietitian's Tips for Consuming Cornstarch

  • Metabolic Effect: Cornstarch is a pure, high-glycemic carbohydrate that can cause a rapid spike in blood sugar shortly after consumption. Individuals with insulin resistance or diabetes should be especially mindful of portion sizes.
  • Consumption Advice: Cornstarch is typically used as a thickening agent, and 1-2 teaspoons (5-10 grams) per dish is usually sufficient for most recipes. Keeping to this amount helps avoid unnecessary calorie intake in everyday cooking.
  • Caution: Due to its refined nature, cornstarch is extremely low in fiber, vitamins, and minerals, making it a functional ingredient rather than a nutritious food. While it is naturally gluten-free and suitable for celiac patients, it should not replace nutrient-dense carbohydrate sources.
  • Exercise: A small amount of cornstarch may serve as a quick energy source before high-intensity training sessions, though this should only be done under the guidance of a sports dietitian. For endurance athletes, complex carbohydrates remain a far more reliable and sustained fuel source.