After six months of dietary treatment , body weight decreased in all subjects ( -@ % ; confidence interval ( @ % CI ) = @-@ @ ) and also self-perceived depression ( -@ % ; @ % CI = @-@ @ ) , as well as circulating leptin ( -@ % ; @ % CI = @-@ @ ) , CRP ( -@ % ; @ % CI = @-@ @ ) and insulin ( -@ % ; @ % CI = @-@ @ ) concentrations .