There was no difference in fat-free mass increment in WF or WF-L compared with CSB + -LSB- WF : +@ kg ( @ % CI : -@ , @ kg ) ; WF-L : +@ kg ( @ % CI : -@ , @ kg ) -RSB- or CSB + + -LSB- WF : -@ kg ( @ % CI : -@ , @ kg ) ; WF-L : +@ kg ( @ % CI : -@ , @ kg ) -RSB- and no effect on iron status .