I had to as well. I'm only on day three, but I can feel changes happening and I needed to know. I can't imagine not weighing yourself, I really feel that it helps me to find out what is working and what isn't. I was really shocked to see that I had lost 10 pounds already. I'm not even half way done with detox yet. 10 pounds is AWESOME. That was my goal for detox, now I can't wait to see how many more come off in the next six days.