(Question) Has anyone seen weight loss results while drinking protein drinks?

Dieting is all the rage around me these days. Dr. Park Yong-woo's Switch On Diet is particularly hot, as it claims to help you lose weight healthily; I hear people lose at least 5 kilograms a month.

I bought protein shakes to replenish protein after workouts rather than for weight loss. Has anyone successfully tried the "Switch On Diet" by consuming protein shakes and managing their diet?