that tounge thing is really different for everyone.
its how you eat/drink before
lifestyle (meds.smoking etc)
what you are doing while on the fast to dump out toxins
how effective your body is at processing stuff
vegans seem to get rid of it fastest
veggies next
the normal people
but for people that had a bad food history...it seems it takes a series of cleanses to get the fully pink tounge.
this is a just a general thing i have noticed.
i never went really long on the cleanse (more than 10) and i still havent gotton totally clear on my tounge. but with each fast and my changed healthier diet it is getting thinner every time. before starting all this i ate like total crap and all the bad stuff too. i had a VERY toxic system with daily headaches etc.