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Protein bar calories

1 piece · 50 g: about 150–260 kcal. 412 kcal per 100 g: 30.3 g protein, 38.4 g carbohydrate, 15.2 g fat.

Approximate value. A USDA branded protein bar record is used as a proxy. Contents vary a lot by brand; allergen tags are cautious.

Three protein bars on a paper towel

In portions

PortionAmountCalories
1 piece50 g150–260 kcal

Nutrition facts (100 g)

Energy412 kcal
Protein30.3 g
Carbohydrate38.4 g
Sugar15.2 g
Fiber7.3 g
Fat15.2 g
Saturated fat3.4 g
Sodium436 mg

Where the calories come from: protein 29% · carbohydrate 38% · fat 33%.

Source: USDA FoodData Central record 173158. The same food can vary by ±25% with its variety, recipe and brand.

Frequently asked questions

Protein bar: how many grams and calories in 1 piece?

1 piece is about 50 g on average and has about 150–260 kcal.

Protein bar: how many calories in 100 grams?

Per 100 g there are 412 kcal, 30.3 g of protein, 38.4 g of carbohydrate and 15.2 g of fat.

Protein bar: how much protein does it have?

Per 100 g there are 30.3 g of protein; 1 piece (50 g) has about 15 g of protein. About 29% of its calories come from protein.

Protein bar: does it make you gain weight?

No single food makes you gain weight on its own; your weight depends on the day’s total calories. 1 piece (50 g) has about 210 kcal: about 10% of a 2,000 kcal day (the reference on nutrition labels). Its energy density is high (4.1 kcal per gram): even a small amount has a lot of calories.

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Similar foods

Among desserts, it is one of the highest in calories: 412 kcal per 100 g (average 303 kcal). Lighter options: Milk chocolate (~32 kcal), Dark chocolate (70–85%) (~36 kcal).

Desserts: full list