The present study included participants from 3 Nordic SYSDIET centers [ Kuopio ( n = 20 ) , Lund ( n = 18 ) , and Oulu ( n = 18 ) ] with a maximum weight change of 4 kg , highly sensitive C-reactive protein concentration < 10 mg/L at the beginning and the end of the intervention , and baseline body mass index ( in kg/m ) < 38 .