If you want to lose weight then you should do exercise daily and follow a diet plan because both are best tools for losing weight. It is good to drink lot of water because it burns calories and fat. Green tea and coffee are also good. Fruit juice is best diet drink for weight lose.
It is good to drink protein shake specially when we can't exercise because protein shake provides energy to the body and fulfills the deficiency of exercise. Protein shake is good source of energy.