Decaf coffee use during protocol

Hi, Im very new to mms and have just started reading on it. I watched a few of the videos and Mark said no coffee during use of mms. Does this still hold true? What about during the evening drinking decaf. I don't drink caffeinated coffee as I have TBI ( brain injury). 
Thanks for any info
I found the answer to my question on another post and I can't figure out how to delete this so please ignore it