the chocolate is not the problem (though, the nuts be if it's a lot), the problem is your scale. get rid of it. if you want to know how much you weigh, fine, but don't weigh yourself for at least a month. measure your progress by looking in the mirror, how your clothes fit, with a measuring tape, and how you feel. there are plenty of reasons for your weight to crawl back up...but your weight doesn't tell you how healthy you are. take notice of your body fat, your energy, your sleep, etc. i'm not saying that your bodyweight isn't important, i'm just saying that it's not as important as it's made out to be.