i've done UA's on parole for 4 years now. i've concluded that attempting to pass drug tests is 40/60 in their favor.
golden seal-a diaretic that forces causes your body to urinate, therefore flushing- ua results come back diluted.
any of the "be clean" stuff you buy is about 50/50. most of the time it still comes back diluted even if it does clean you out.
niacin-total myth
cranberry juice-total myth
vinegar-total myth
pickle juice-total myth
there's one way i've found to pass ua's years back before i decided it wasn't worth it. dilute with water. and i mean drink 'til you are nearly sick. when your pee comes out clear in the toilet, you are diluted. now, you need creatine, you can get it at gnc. you take a load up dose of creatine along with a multi-vitamin. when your pee comes out yellow, that means that the creatine and vitamins are now in your pee. you need to take a double dose of the vitamins and, like i said, a load up dose of the creatine. you can pass the parole/probation ua's 90 percent of the time this way. ua's for alot of jobs is not as thorough as the ones for parole. most of them do the stick test. parole and some select jobs may do the test where it is actually ran through the machine (can't remember what it's called). all that crap about metabolism, body fat, etc. has no bearing on the body getting rid of weed. thc is stored in the brain cells, which is 90 percent fat. it has nothing to do with that other crap. cocaine on the other hand is gotten rid of faster by certain body types. cocaine is water soluble, thc is not.