The 7 day diet, love it or hate it? Cabbage soup is a part of many different diet plans and has a zillion different names. I use it with the 7 day diet. I’ve been loving it so far and this diet never fails to give me my 10 pound weight loss in 7 days. One thing I love about this Wonder Soup is that you can eat as much of it as you like. I’m all for a diet that lets me eat like a field beast whenever I want to.