Can I use the Cabbage Soup Diet instead of the VLCD Bariatric Surgery preoperative diet?

The Very Low Calorie Diet (VLCD) is a preoperative diet used to prepare for surgery. It specifically designed to help you lose a few pounds, shrink your liver and ensure you have enough protein for healing.In this video, a viewer asks Dr. Matthew Weiner whether she can substitute the VLCD for the cabbage soup diet.