First of all, losing weight can show that you have requirements for your figure and weight, and healthy physical condition is good for your later life. But secondly, your method of losing weight is not good for your health. Excessive dieting will only lead to water loss and dysfunction. It causes discomfort to the body and even seriously damages the function of body organs. Reasonable control of calorie intake, three meals according to nutrition distribution, plus appropriate intensity of training, as long as you persist, you can lose weight successfully. So, give up dieting, take good care of yourself and lose weight rationally.