There are only a few situations where this can happen appreciably. Google "Lyle McDonald and lose fat while gain muscle" and he goes into the science behind it, but otherwise, no..."appreciably" (Google "Lyle McDonald and recomp). To build, you must have extra calories to use as building blocks...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.