The bigger the muscles, the more energy they require for proper functioning, resulting in increased calorie expenditure. (fitnessandpower.com)
The best approach is to reduce calories only slightly and raise your daily calorie expenditure by increasing your frequency, duration and or intensity of exercise. (bodybuildingforyou.com)
We can't say for sure that the increase in calorie expenditure was because of the extra muscle alone. (muscleevo.net)