Mars fun size
Packaged product Sweets and Desserts Mars
Mars fun size contains 451 kcal per 100 g. A serving, 1 bar, 16 g (16 g) provides about 72 kcal.
Roughly 63% of its calories come from carbohydrates, with 34% from fat and 3% from protein (estimated with general energy factors).
That is close to the median for sweets and desserts on FoodFactly (431 kcal per 100 g).
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 | 451 kcal | |
| Total fat L | 16.9 g | 22% |
| Saturated fat L | 8.1 g | 41% |
| Sodium L | 125 mg | 5% |
| Total carbohydrates L | 70.6 g | 26% |
| Dietary fiber | not reported | |
| Total sugars L | 57.5 g | |
| Protein L | 3.1 g | 6% |
% 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 3%
- Carbohydrates 63%
- Fat 34%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Nutritional insights
- Protein3.1 gin the lowest quarter of sweets and desserts (median 8 g)
- Sugars57.5 gin the top quarter of sweets and desserts (median 30 g)
- Fat16.9 gbelow the median for sweets and desserts (median 19.1 g)
- Saturated fat8.1 gabove the median for sweets and desserts (median 6 g)
- Sodium125 mgbelow the median for sweets and desserts (median 132 mg)
- Protein per 100 kcal0.69 gprotein density, useful for comparing foods with different calorie levels
Product details
Ingredients
Ingredients not reported.
Similar products
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Bar with benefits mixed seeds Foodness | 451 | 15.4 g | 40.4 g | 33.9 g |
| Amul Almond Bar Amul | 451 | 6.3 g | 64.9 g | 18.3 g |
| Almond cranberry bar Oskri | 451 | 9.4 g | 58 g | 19 g |
| Mars Fun Size Mars | 451 | 3.1 g | 70.6 g | 16.9 g |
| Energy Bar Date & Peanut Body&fit | 452 | 13 g | 41.9 g | 24.3 g |
| Buoni senza Céréal | 452 | 6 g | 55 g | 27 g |
| Super nut fruit & seed flapjack Marks & Spencer | 452 | 6.3 g | 51.9 g | 23 g |
| Peanut Butter Chip Chewy Granola Bars Sunbelt Bakery | 452 | 6.5 g | 67.7 g | 16.1 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in Mars fun size?
100 g of Mars fun size has 451 kcal. Serving, 1 bar, 16 g (16 g): about 72 kcal.
How much protein is in Mars fun size?
Mars fun size contains 3.1 g of protein per 100 g (6% of the 50 g Daily Value), or 0.5 g in serving, 1 bar, 16 g (16 g). About 3% of its calories come from protein. Compared with other sweets and desserts, that is in the lowest quarter (median 8 g).
How many carbs are in Mars fun size?
Mars fun size has 70.6 g of total carbohydrates per 100 g, including 57.5 g of sugars. Label conventions differ: in the EU and some other regions carbohydrates are declared without fiber.
How much fat is in Mars fun size?
Mars fun size contains 16.9 g of fat per 100 g, of which 8.1 g is saturated (41% of the Daily Value).
How much sodium is in Mars fun size?
100 g contains 125 mg of sodium, 5% of the 2,300 mg Daily Value.
Where does this nutrition data come from?
From Open Food Facts, record dated March 27, 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 5000159545341. License: ODbL 1.0 (Open Food Facts). Source record dated March 27, 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.