What distinguishes these results from previous investigations showing beneficial effects (cf. table 1) of a high protein diet is the lack of an energy restriction.Participants on the HPHF [high protein, high fiber] diet lost more body weight (1.3 kg; 95% CI, 0.7, 1.9; P<0.0001), total fat (1.0 kg; 95% CI, 0.2, 1.8; P<0.0001) and truncal fat (0.7 kg; 95% CI, 0.1, 1.3; P=0.034) than participants on the standard diet. Total cholesterol and low-density lipoprotein (LDL) cholesterol were also significantly lower after the HPHF diet.
|Table 1: Baseline, week 4 and week 10 measures for body composition variables for the standard diet and HPHF groups|
If you are an athlete you may also be interested in the results of Woodall et al. (Woodall. 2010) who confirmed (yet another time) that supplementing additional protein (whey or casein) "might have a significant impact on muscular strength adaptations and body composition that occur with controlled resistance training."