Yes, because the more muscle you have the faster your metabolism (the amount of calories your body burns at rest) becomes. So, more muscle = higher metabolism = more calories burnedHope that helps.
First track how many calories you burn on a daily basis. Calculate your BMR (Basal Metabolic Rate) AMR (Active Metabolic Rate) here:http://www.preventdisease.com/healthtool��This will give you a rough estimate on your daily calorie expenditure. You can then more accurately develop a diet and physical activity regimen to help you lose weight.