Depending on what: Type of weight lifting you are doing, it may bulk up arm muscles or tone them but it will not specifically cause you to lose fat on your arms. Spot fat loss does not occur naturally. By losing weight in general a certain amt will probably be arm fat. However, we don't get to chose what area of the body the fat is lost from. Eat healthfully ; be physically active. Calories burned must > calories.
Answered 4/8/2016
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