Mars Bar

Packaged product Autres aliments Mars

Mars Bar contains 451 kcal per 100 g. A serving, 1 bar, 51 g (51 g) provides about 230 kcal.

Roughly 62 % of its calories come from carbohydrates, with 35 % from fat and 3 % from protein (estimated with general energy factors).

That is more energy than the typical item in autres aliments on FoodFactly, where the median is 270 kcal per 100 g across 274 655 products.

The values are as declared on the product label and entered by Open Food Facts contributors.

451kcal per 100 g
3,9 gprotein
70,6 gcarbohydrates
17,6 gfat
230kcal in serving, 1 bar, 51 g (51 g)

Nutrition facts

Nutrition facts for the selected amount
NutrientAmount per 100 g% DV
Calories L 451 kcal
Total fat L 17,6 g 23 %
Saturated fat L 9,8 g 49 %
Sodium L 157 mg 7 %
Total carbohydrates L 70,6 g 26 %
Dietary fiber L 2 g 7 %
Total sugars L 62,7 g
Protein L 3,9 g 8 %

% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.

Nutritional breakdown

Protein: 3 %Carbohydrates: 62 %Fat: 35 %451kcal / 100 g
  • Protein 3 %
  • Carbohydrates 62 %
  • Fat 35 %

Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).

Nutritional insights

  • Protein3,9 gbelow the median for autres aliments (median 6,9 g)
  • Fiber2 gabove the median for autres aliments (median 1,8 g)
  • Sugars62,7 gin the top quarter of autres aliments (median 3,5 g)
  • Fat17,6 gabove the median for autres aliments (median 6,4 g)
  • Saturated fat9,8 gin the top quarter of autres aliments (median 1,9 g)
  • Sodium157 mgbelow the median for autres aliments (median 236 mg)
  • Protein per 100 kcal0,87 gprotein density, useful for comparing foods with different calorie levels

Product details

Brand
Mars
Barcode
5000159409674
Label serving
1 bar (51 g)
Category
Autres aliments

Ingredients

Ingredients not reported.

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Per 100 g. Calories in kcal. n/a: not reported by the source.

Frequently asked questions

How many calories are in Mars Bar?

100 g of Mars Bar has 451 kcal. Serving, 1 bar, 51 g (51 g): about 230 kcal.

How much protein is in Mars Bar?

Mars Bar contains 3,9 g of protein per 100 g (8 % of the 50 g Daily Value), or 2 g in serving, 1 bar, 51 g (51 g). About 3 % of its calories come from protein. Compared with other autres aliments, that is below the median (median 6,9 g).

How many carbs are in Mars Bar?

Mars Bar has 70,6 g of total carbohydrates per 100 g, including 2 g of fiber and 62,7 g of sugars. Label conventions differ: in the EU and some other regions carbohydrates are declared without fiber.

How much fat is in Mars Bar?

Mars Bar contains 17,6 g of fat per 100 g, of which 9,8 g is saturated (49 % of the Daily Value).

How much sodium is in Mars Bar?

100 g contains 157 mg of sodium, 7 % of the 2,300 mg Daily Value.

Where does this nutrition data come from?

From Open Food Facts, record dated 30 juin 2026. FoodFactly last checked it on 6 novembre 2026. Each value above shows whether it was measured, calculated or taken from a label.

Source of the nutrition information

  • Open Food Facts, record 5000159409674. License: ODbL 1.0 (Open Food Facts). Source record dated 30 juin 2026. Imported 6 novembre 2026.

Last updated: . Data quality score: 85/100 (how it is calculated).

Product data from Open Food Facts, made available under the Open Database License. Values are as declared on the label; labels can change over time, so check the package you have.

General nutrition information, not medical advice. Individual needs differ; see our disclaimer.