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Mars Protein
Mars Protein by Mars provides 351 kcal per 100 g, with 23 g of sugars and 33 g of protein. That is 96% more sugar than the average product in this category. It is listed in the Protein bars category and comes in a 57 g pack.
Nutrient levels per 100 g
Levels use UK front-of-pack reference thresholds.
Nutrition facts
Serving size: 57 g
| Nutrient | Per 100 g | Per serving | % DV* | Category avg |
|---|---|---|---|---|
| Calories | 351 kcal | 200 kcal | 383 −8% | |
| Total fat | 8.1 g | 4.6 g | 6% | 15.7 −48% |
| Saturated fat | 4.5 g | 2.6 g | 13% | 7 −36% |
| Carbohydrates | 39 g | 22.2 g | 8% | 33.9 +15% |
| Total sugars | 23 g | 13.1 g | 11.8 +96% | |
| Protein | 33 g | 18.8 g | 38% | 29.5 +12% |
| Salt | 0.7 g | 0.4 g | 0.7 |
*% Daily Value for a serving, based on a 2,000-calorie diet (FDA reference values). Category average across 4038 Protein bars products on Foodmetria.
Compared with other protein bars
Bar shows the share of products in this category that contain less of the nutrient.
Ingredients
Ingredient list not available.
- May contain traces
- NutsPeanuts
Product details
- Quantity
- 57 g
- Serving size
- 57 g
- Labels & certifications
- Green Dot
- Sold in
- Finland, France
- Barcode
- 5060402906961
Prices reported by shoppers
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Frequently asked questions
How many calories are in Mars Protein?
Mars Protein contains 351 kcal per 100 g and about 200 kcal per serving (57 g).
How much sugar is in Mars Protein?
Mars Protein has 23 g of sugars per 100 g, which is considered high by UK front-of-pack guidelines.
What allergens does Mars Protein contain?
No allergens are listed in the label data. It may also contain traces of nuts, peanuts. Recipes change — always check the package label.
Source: Open Food Facts (ODbL). Last updated March 21, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.
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