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Snack Size Mars
Snack Size Mars by Mars provides 450 kcal per 100 g, with 60 g of sugars and 5 g of protein. That is 99% 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 Bars category and comes in a 130 g pack. Contains: eggs, gluten, milk, soybeans.
Nutrient levels per 100 g
Levels use UK front-of-pack reference thresholds.
Nutrition facts
Serving size: 40 g
| Nutrient | Per 100 g | Per serving | % DV* | Category avg |
|---|---|---|---|---|
| Calories | 450 kcal | 180 kcal | 432 | |
| Total fat | 17.5 g | 7 g | 9% | 20.4 −14% |
| Saturated fat | 10 g | 4 g | 20% | 7.7 +31% |
| Carbohydrates | 70 g | 28 g | 10% | 50.1 +40% |
| Total sugars | 60 g | 24 g | 30.1 +99% | |
| Added sugars | 58.3 g | 23.3 g | 47% | 17.3 +237% |
| Dietary fiber | 0 g | 0 g | 0% | 7.7 −100% |
| Protein | 5 g | 2 g | 4% | 11.5 −57% |
| Salt | 0.4 g | 0.2 g | 0.5 −20% |
*% Daily Value for a serving, based on a 2,000-calorie diet (FDA reference values). Category average across 2570 Bars products on Foodmetria.
Compared with other bars
Bar shows the share of products in this category that contain less of the nutrient.
Ingredients
Sugars (sugar, corn syrup, lactose, malted barley extract), Milk ingredients, Modified palm oil, Cocoa butter, Cocoa mass, Cocoa powder, Salt, Soy lecithin, Dried egg-white, Artificial flavour
- Allergens
- EggsGlutenMilkSoybeans
Additives 2
Overexposure risk is based on EFSA evaluations as recorded by Open Food Facts.
Product details
- Quantity
- 130 g
- Serving size
- 40 g
- Labels & certifications
- KosherNo peanutsOrthodox Union Kosher
- Sold in
- Canada, France
- Barcode
- 0058496434236
Prices reported by shoppers
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Frequently asked questions
How many calories are in Snack Size Mars?
Snack Size Mars contains 450 kcal per 100 g and about 180 kcal per serving (40 g).
How much sugar is in Snack Size Mars?
Snack Size Mars has 60 g of sugars per 100 g, which is considered high by UK front-of-pack guidelines.
Is Snack Size Mars 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 Snack Size Mars vegan?
Based on its ingredient list, it is not vegan.
What allergens does Snack Size Mars contain?
According to the label data it contains: Eggs, Gluten, Milk, Soybeans. Recipes change — always check the package label.
Source: Open Food Facts (ODbL). Last updated March 14, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.
Reviews
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