From what I am reading it takes some a little longer for the SIRT1 gene to kick in. They say around the fourth week or so.

One thing that helps me on DD is to eat lettuce with zero calorie dressing if hunger is bugging me. It takes off the edge and I consider it "free". I don't count it as calories at all. Also, homemade chicken broth helps.

I also weigh myself once a week- on Thursdays. It would really bother me to watch the scale go up and down all week. I only do DD- M,W,F. Eating lower calorie during the week days and leaving my weekends open is a big deal in my world. Just knowing I can eat both Sat and Sun helps me get through the week for some reason.