It is healthy to lose about 5 kg a month. You can't lose too much weight at once, which is harmful to your body function. Don't blindly believe that lying thin, don't take diet pills, dieting can't achieve the purpose of losing weight, because losing weight means reducing fat, eating well, sleeping normally, drinking plenty of water and cooperating with moderate exercise, so as to improve the basal metabolic rate and lose weight healthily. This is the advice given by a senior dieter.