The scientific data to date indicates that a high-protein diet accentuates the impact of weight reduction on body fatness, attenuates the physiological vulnerability of the weight-reduced obese individual, and promotes fat-free mass retention during weight loss.

Dietary protein and exercise have additive effects on body composition during weight loss. Some of the potential mechanisms by which protein exerts its beneficial effect on weight include increases in satiety and thermogenesis.

The role of different food sources of protein remains to be clarified but the evidence to date indicates a beneficial impact regarding the role of dairy products in weight management.

In conclusion, long term weight loss or maintenance is facilitated by a moderate to high-protein intake, and especially in combination with regular physical activity.