Any form of nutrition taken during a Water Fast can and will stimulate appetite/hunger, so water only is the best course to follow.
It also takes time to detox from any drugs, so please be patient.
I would like to add that it is not a good idea to set an arbitrary time limit on your fast, as developments can initiate a change in the length of it, so be guided by your body and (hopefully) by an experienced supervisor of Water Fasts who should advise you accordingly.