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The Calories in the Mars Bar Fun Size

author image Brian Willett
Brian Willett began writing in 2005. He has been published in the "Buffalo News," the "Daytona Times" and "Natural Muscle Magazine." Willett also writes for and He is an American Council on Exercise-certified personal trainer and earned a Bachelor of Arts in journalism from the University of North Carolina.
The Calories in the Mars Bar Fun Size
The Calories in the Mars Bar Fun Size

Because regular Mars bars can be high in fat and calories, fun-size Mars bars may be more appropriate for dieters. These smaller versions of Mars bars offer lower amounts of fat, sugar and calories.

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One fun-size Mars bar contains 60 calories. This product offers significantly fewer calories than a standard Mars bar, which has 258 calories.


A fun-size Mars bar contains 2 g of fat, with 1 g of saturated fat. Regular Mars bars are high in fat, with 10 g of fat and 6 g of saturated fat. You should limit daily saturated fat intake to just 7 percent of your total calories.


Carbohydrates provide most of the calories in fun-size Mars bars. Each fun-size bar contains 10 g of carbohydrates, with 8 g of sugar.


Fun-size Mars bars do not contain any measurable protein, and standard Mars bars contain only 2 g of this vital nutrient.

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