The more muscle you have, the more calories your body is able to burn. It is amazing how much a difference muscle can do. Below is a link of one of my best friends who did a 12 week body for life challenge. She only lost 20 lbs, but gained muscle and the difference in her body is amazing. She also won 1st place in her age division and won $40K. So it was a sweet victory for her. You have to scroll down to see her after picture.
http://www.bodyforlife-tracker.com/s...s.cfm?id=15910 