This method of losing weight, not to mention fainting, vomiting, hypotension and other diseases that may occur during the initial fasting period, hunger alone will cause dizziness, dizziness, fatigue, sweating and other hypoglycemia, and you will have hypoglycemia yourself. If you want to use the 2 1 day diet, it will definitely add insult to injury, damage your health and even endanger your life. Never lose weight in this unhealthy way. In the absence of professional slimming knowledge, I suggest that you eat three meals a day, eat moderately, eat less at dinner, skip supper, and take a certain amount of exercise to gradually slim down.