Mars Duo

Packaged product Sweets and Desserts Mars

Mars Duo contains 442 kcal per 100 g. A serving, 1 portion, 34.5 g (34.5 g) provides about 152 kcal.

Roughly 63% of its calories come from carbohydrates, with 33% from fat and 4% from protein (estimated with general energy factors).

That is more energy than the typical item in sweets and desserts on FoodFactly, where the median is 385 kcal per 100 g across 8,424 products.

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

Mars Duo by Mars, product photo
Photo: Open Food Facts, CC BY-SA 3.0, Open Food Facts contributors
442kcal per 100 g
4.5 gprotein
70 gcarbohydrates
16 gfat
152kcal in serving, 1 portion, 34.5 g (34.5 g)

Nutrition facts

Nutrition facts for the selected amount
NutrientAmount per 100 g% DV
Calories L 442 kcal
Total fat L 16 g 21%
Saturated fat L 7.5 g 38%
Sodium L 268 mg 12%
Total carbohydrates L 70 g 25%
Dietary fiber not reported
Total sugars L 61 g
Added sugars L 61.9 g 124%
Protein L 4.5 g 9%

% 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: 4%Carbohydrates: 63%Fat: 33%442kcal / 100 g
  • Protein 4%
  • Carbohydrates 63%
  • Fat 33%

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

Nutritional insights

  • Protein4.5 gabove the median for sweets and desserts (median 2.6 g)
  • Sugars61 gabove the median for sweets and desserts (median 54.8 g)
  • Fat16 gabove the median for sweets and desserts (median 0.5 g)
  • Saturated fat7.5 gabove the median for sweets and desserts (median 1.3 g)
  • Sodium268 mgin the top quarter of sweets and desserts (median 50 mg)
  • Protein per 100 kcal1 gprotein density, useful for comparing foods with different calorie levels

Product details

Brand
Mars
Barcode
5000159605144
Label serving
1 portion (34.5 g)
Category
Confectioneries
Nutri-Score
E as computed by Open Food Facts
NOVA group
4 processing level (1 to 4), as classified by Open Food Facts

Ingredients

Sugar, glucose syrup, skimmed milk powder, cocoa butter, cocoa mass, sunflower oil, whey permeate (milk), palm fat, milk fat, fat-reduced cocoa powder, barley malt extract, salt, emulsifier (soya lecithin), and egg white powder.

As listed on the package and transcribed by Open Food Facts contributors. Always check the package for allergens.

Ingredient guides: SugarGlucose syrupCocoa butterSunflower oilSaltEgg

Similar products

FoodCaloriesProteinCarbsFat
Giant eagle, glazed decorated cookie Giant Eagle 442 5.3 g 77.9 g 11.6 g
Farinoso con Canela Ignacio Monesma e Hijos 442 5.4 g 70 g 19 g
Boero Vergani 442 3.5 g 60 g 18 g
Boero Vergani Vergani 442 3.5 g 60 g 18 g
Mars duo Mars 442 4.5 g 70 g 16 g
Marzapane Eppinger 442 7.4 g 70 g 16.6 g
Lamontagne, Caramel Milk Chocolate Lamontagne Chocolate Inc. 442 4.7 g 67.4 g 20.9 g
Lovely Candy Co, Cashamels The Lovely Candy Company Llc 442 2.3 g 67.4 g 18.6 g

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

Frequently asked questions

How many calories are in Mars Duo?

100 g of Mars Duo has 442 kcal. Serving, 1 portion, 34.5 g (34.5 g): about 152 kcal.

How much protein is in Mars Duo?

Mars Duo contains 4.5 g of protein per 100 g (9% of the 50 g Daily Value), or 1.6 g in serving, 1 portion, 34.5 g (34.5 g). About 4% of its calories come from protein. Compared with other sweets and desserts, that is above the median (median 2.6 g).

How many carbs are in Mars Duo?

Mars Duo has 70 g of total carbohydrates per 100 g, including 61 g of sugars. Label conventions differ: in the EU and some other regions carbohydrates are declared without fiber.

How much fat is in Mars Duo?

Mars Duo contains 16 g of fat per 100 g, of which 7.5 g is saturated (38% of the Daily Value).

How much sodium is in Mars Duo?

100 g contains 268 mg of sodium, 12% of the 2,300 mg Daily Value.

Where does this nutrition data come from?

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

Source of the nutrition information

  • Open Food Facts, record 5000159605144. License: ODbL 1.0 (Open Food Facts). Source record dated October 30, 2026. Imported November 6, 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.