1, because if you only drink one glass of milk in the morning. It will inevitably lead to eating more at noon. In this way, not only can not achieve the purpose of losing weight, but it may lead to weight gain;

2, because if you drink a glass of milk in the morning, you have to supplement other foods. This is no different from a normal diet. This will not achieve the purpose of losing weight.

The main way to lose weight is aerobic exercise.

I wish you success in losing weight.