Mars Bar
Packaged product Sucres et desserts Mars
Mars Bar contains 365 kcal per 100 g. A serving, 1 bar, 39.4 g (39,4 g) provides about 144 kcal.
Roughly 75 % of its calories come from carbohydrates, with 22 % from fat and 4 % from protein (estimated with general energy factors).
That is less energy than the typical item in sucres et desserts on FoodFactly, where the median is 431 kcal per 100 g across 1 726 products.
100 g provides 19 % of the Daily Value for Vitamine B12, 15 % of the Daily Value for Riboflavine (B2) and 11 % of the Daily Value for calcium.
The values are as declared on the product label and entered by Open Food Facts contributors.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories L | 365 kcal | |
| Total fat L | 10,6 g | 14 % |
| Saturated fat L | 0,39 g | 2 % |
| Cholesterol L | 1,5 mg | 0,5 % |
| Sodium L | 66,8 mg | 3 % |
| Total carbohydrates L | 82,9 g | 30 % |
| Dietary fiber L | 0,027 g | 0,1 % |
| Total sugars L | 82,8 g | |
| Added sugars L | 76,8 g | 154 % |
| Protein L | 4,1 g | 8 % |
| Vitamine A L | 1,1 µg | 0,1 % |
| Vitamine C L | 0,71 mg | 0,8 % |
| Vitamine D L | 0,007 µg | 0 % |
| Vitamine E L | 1 mg | 7 % |
| Thiamine (B1) L | 0,05 mg | 4 % |
| Riboflavine (B2) L | 0,19 mg | 15 % |
| Niacine (B3) L | 0,11 mg | 0,7 % |
| Acide pantothénique (B5) L | 0,41 mg | 8 % |
| Vitamine B6 L | 0,049 mg | 3 % |
| Folate (B9) L | 4,2 µg | 1 % |
| Vitamine B12 L | 0,47 µg | 19 % |
| Calcium L | 148 mg | 11 % |
| Fer L | 0,14 mg | 0,8 % |
| Magnésium L | 14,7 mg | 4 % |
| Phosphore L | 113 mg | 9 % |
| Potassium L | 208 mg | 4 % |
| Zinc L | 0,54 mg | 5 % |
| Cuivre L | 0,016 mg | 2 % |
| Manganèse L | 0,015 mg | 0,6 % |
| Sélénium L | 5,5 µg | 10 % |
| Iodine L | 1,6 µg | 1 % |
% 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 75 %
- Fat 22 %
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Vitamins and minerals, % Daily Value per 100 g
Nutritional insights
- Protein4,1 gin the lowest quarter of sucres et desserts (median 8 g)
- Fiber0,027 gin the lowest quarter of sucres et desserts (median 6,1 g)
- Sugars82,8 gin the top quarter of sucres et desserts (median 30 g)
- Fat10,6 gin the lowest quarter of sucres et desserts (median 19,1 g)
- Saturated fat0,39 gin the lowest quarter of sucres et desserts (median 6 g)
- Sodium66,8 mgbelow the median for sucres et desserts (median 132 mg)
- Protein per 100 kcal1,1 gprotein density, useful for comparing foods with different calorie levels
- Water0,36 gwater per 100 g, which largely explains differences between raw, cooked and dried forms
Full nutrient profile
Sugars and starch (1)
| Étoile L | 0,008 g |
|---|
Carotenoids (1)
| Bêta-carotène L | 0,15 µg |
|---|
Other components (2)
| Eau L | 0,36 g |
|---|---|
| Alcool L | 0 g |
Product details
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), egg white powder. (May contain: peanuts and other nuts).
As listed on the package and transcribed by Open Food Facts contributors. Always check the package for allergens.
Ingredient guides: SucreSirop de glucoseBeurre de cacaoHuile de tournesolSelOeuf
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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 365 kcal. Serving, 1 bar, 39.4 g (39,4 g): about 144 kcal.
How much protein is in Mars Bar?
Mars Bar contains 4,1 g of protein per 100 g (8 % of the 50 g Daily Value), or 1,6 g in serving, 1 bar, 39.4 g (39,4 g). About 4 % of its calories come from protein. Compared with other sucres et desserts, that is in the lowest quarter (median 8 g).
How many carbs are in Mars Bar?
Mars Bar has 82,9 g of total carbohydrates per 100 g, including 0,027 g of fiber and 82,8 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 10,6 g of fat per 100 g, of which 0,39 g is saturated (2 % of the Daily Value).
What vitamins and minerals does Mars Bar contain?
Per 100 g, the most notable amounts relative to the Daily Value are Vitamine B12 (19 % DV), Riboflavine (B2) (15 % DV), calcium (11 % DV) and sélénium (10 % DV). The full list is in the vitamins and minerals table above.
How much sodium is in Mars Bar?
100 g contains 66,8 mg of sodium, 3 % of the 2,300 mg Daily Value.
Where does this nutrition data come from?
From Open Food Facts, record dated 28 février 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 5000159551823. License: ODbL 1.0 (Open Food Facts). Source record dated 28 février 2026. Imported 6 novembre 2026.
Last updated: . Data quality score: 100/100 (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.