Mars Bar Nutrition Facts: Calories, Macros & Health Benefits
Summary: Mars Bar contains 452 calories, 4.3g protein, 69g carbs, and 17.5g fat per one bar (51g). It is a source of saturated fat, iron, zinc.

Nutrition Facts — one bar (51g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 452 kcal | 23% |
| Protein | 4.3g | 9% |
| Carbohydrates | 69.0g | 25% |
| Total Fat | 17.5g | 22% |
| Fiber | 1.3g | 5% |
| Sugar | 62.0g | -- |
| Saturated Fat | 10.2g | 51% |
| Cholesterol | 10.0mg | 3% |
| Sodium | 150.0mg | 7% |
| Calcium | 30.0mg | 2% |
| Iron | 150.0mg | 833% |
| Magnesium | 0.80mg | 0% |
| Zinc | 120.0mg | 1091% |
| Vitamin C | 0.10mg | 0% |
| Vitamin A | 0.20mcg | 0% |
| Vitamin B6 | 0.50mg | 29% |
| Vitamin B12 | 0.05mcg | 2% |
| Folate | 10.0mcg | 2% |
| Vitamin E | 1.0mg | 7% |
| Vitamin K | 0.30mcg | 0% |
| Phosphorus | 30.0mg | 2% |
Is Mars Bar Good for You?
Mars Bar provides 452 calories per one bar (51g) with 4.3g protein, 69g carbohydrates, and 17.5g fat. It is a source of saturated fat (51% dv), iron (833% dv), zinc (1091% dv).
Branded chocolate bar with nougat and caramel coated in milk chocolate
Key Health Benefits of Mars Bar
- Saturated Fat (51% DV): Supports balanced nutrition when included as part of your daily meals.
- Iron (833% DV): Supports balanced nutrition when included as part of your daily meals.
- Zinc (1091% DV): Supports balanced nutrition when included as part of your daily meals.
- Vitamin B6 (29% DV): Supports balanced nutrition when included as part of your daily meals.
How to Track Mars Bar Nutrition with Gram
Use Gram to log mars bar and see calories, macros, and micronutrients in context. You can search by name or use AI food scanning to track meals quickly.
Frequently Asked Questions
How many calories are in mars bar?
Mars Bar contains 452 calories per one bar (51g).
How much protein is in mars bar?
Mars Bar provides 4.3g of protein per one bar (51g).
How many carbs are in mars bar?
Mars Bar has 69g of carbohydrates per one bar (51g).
Is mars bar good for tracking nutrition?
Yes. Mars Bar can be logged by calories, macros, and micronutrients in the Gram app.
How should I use mars bar in a meal plan?
Use Mars Bar as part of a balanced meal and compare the protein, carbs, and fat values to your daily targets.
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Nutrition data sourced from USDA FoodData Central. Track mars bar and thousands of other foods with the Gram app.