Mars Duo by Mars

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Mars Duo

by Mars 78.8g in Coated chocolate bar without biscuit Barcode 5000159519328
Nutri-Score
Bad nutritional quality
Processing (NOVA)
Ultra-processed food

Mars Duo by Mars provides 448 kcal per 100 g, with 60 g of sugars and 4.3 g of protein. That is 68% more sugar than the average product in this category. Its Nutri-Score is E and it is classified as NOVA 4 (ultra-processed food). It is listed in the Coated chocolate bar without biscuit category and comes in a 78.8g pack. Contains: gluten, milk, soybeans.

Nutrient levels per 100 g

Fat
17 g · Moderate
Saturated fat
8.1 g · High
Sugars
60 g · High
Salt
0.4 g · Moderate

Levels use UK front-of-pack reference thresholds.

Nutrition facts

Nutrient Per 100 g Category avg
Calories 448 kcal 470 −5%
Total fat 17 g 25.7 −34%
Saturated fat 8.1 g 12.2 −34%
Carbohydrates 69 g 49.1 +41%
Total sugars 60 g 35.7 +68%
Added sugars 55.6 g 18.7 +197%
Protein 4.3 g 11.6 −63%
Salt 0.4 g 0.4 +19%

Category average across 34 Coated chocolate bar without biscuit products on Foodmetria.

Compared with other coated chocolate bar without biscuit

Calories lower 42%
Sugars higher 9%
Salt higher 30%
Saturated fat lower 34%
Protein top 87%

Bar shows the share of products in this category that contain less of the nutrient.

Ingredients

Sucre, sirop de glucose, lait écrémé en poudre, beurre de cacao, pâte de cacao, huile de tournesol, matière grasse du lait, lactese et protéines de petit lait, petit-lait en poudre, matière grasse de palme, cacao maigre, extrait de malt d'orge, émulsifiant (lécithine de soja), sel, blanc doeuf en poudre, protéine de lait, extrait naturel de vanille.

Contains palm oilNot vegan
Allergens
GlutenMilkSoybeans

Additives 2

E322 - Lecithins
Antioxidant
E322i - Lecithin
Antioxidant

Overexposure risk is based on EFSA evaluations as recorded by Open Food Facts.

Product details

Quantity
78.8g
Sold in
France
Barcode
5000159519328

Prices reported by shoppers

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Frequently asked questions

How many calories are in Mars Duo?

Mars Duo contains 448 kcal per 100 g.

How much sugar is in Mars Duo?

Mars Duo has 60 g of sugars per 100 g, which is considered high by UK front-of-pack guidelines.

Is Mars Duo healthy?

It has a Nutri-Score of E (A is best, E is worst); it is in NOVA group 4 — ultra-processed food. Scores describe nutritional quality and processing, not suitability for your individual diet.

Is Mars Duo vegan?

Based on its ingredient list, it is not vegan.

What allergens does Mars Duo contain?

According to the label data it contains: Gluten, Milk, Soybeans. Recipes change — always check the package label.

Source: Open Food Facts (ODbL). Last updated March 17, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.

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