As I have never done that or really heard about people doing that, it's hard to say if it is ok or not. However, having never done the clenase longer than 18 days, I cannot imagine how boring things are going to get after that point. Everything will mix together in the stomach anyway and you are drinking it fresh and immediately, so actually I don't really see any harm in doing so. Provided you are still seeing the effects of the cleanse and you are not seeing any adverse effects, then I would suspect all is well. And keep going! I would suggest though for the first 10-14 days you only do it by mixing it together in the glass, after that period, perhaps the shots would be ok. Just my opinion, but if you are feeling ok, then up to your feeling I guess.