Zwieback: nutrition facts

A 100 g serving of Zwieback has 426 calories. About 70% of those calories come from carbohydrates, 10% from protein and 21% from fat.

Nutrition facts per 100 g

NutrientAmount
Calories426 kcal
Protein10.1 g
Total fat9.7 g
Saturated fat2.53 g
Carbohydrates74.2 g
Fiber2.5 g
Sugars12.5 g
Sodium227 mg
Potassium305 mg
Cholesterol8 mg
Calcium20 mg
Iron0.6 mg

Nutrition per serving

ServingWeightCaloriesProteinCarbsFat
1 oz 28.4 g 121 2.9 g 21.1 g 2.8 g
1 piece 7 g 30 0.7 g 5.2 g 0.7 g
1 rusk 10 g 43 1 g 7.4 g 1 g
1 toast, Gerber Zwieback 7 g 30 0.7 g 5.2 g 0.7 g
Values are averages from USDA FoodData Central and vary by brand, ripeness and preparation. This is general information, not medical or dietary advice.

Frequently asked questions

How many calories are in 100 g of zwieback?

A 100 g serving of Zwieback has 426 calories, according to USDA data.

How many calories are in one serving of zwieback?

A serving of 1 oz weighs about 28.4 g and has about 121 calories.

How much protein is in zwieback?

100 g of Zwieback has 10.1 g of protein.