I must admit the first three days in phase 1 were ****!!! but hey I just came off a week long holiday that consisted of whatever I wanted whenever I wanted...including a butter tart or two in the morning for a buZZZZZZ... anyway I suffered from headaches the first couple of days much like I did when I gave up caffine a number of years ago!!! So far, I did stand on a scale before going on South Beach, a week before 197lbs at the gym...before my holiday, so it's anyone' guess...... stood on the scale after day 13 phase 1....187lbs....yesterday at the gym...day 3 phase 2....183. I had read about this diet and really am looking for something that will fit it my lifestyle...so far so good!! But the first three days were ****!! and I still would like to eat a cookie as big as my head!!! maybe I will...the diet allows a slide!! I'm not hungry and I'm following the book!! and mixing the menu's!!