I work for a government power wholesaler and had to take a drug test to get the job. I took Spike the day before and passed my urine test. The rest of my diet was perfectly normal including Grow! shakes, lots of coffee, some booze in the evenings, and occasional shitty food.
On this note of urine and Spike...does this stuff not make your piss smell absolutely AWFUL? My girlfriend could smell it in the bathroom 5 minutes after I took a leak. Since they changed to the new quick-release thing, it seems to have gotten even worse. I really don't care, but just an amusing observation.