Quote Originally Posted by testingsux
Aspirin is thought to mess with an EMIT style test and cause a negative result...but the EMIT style tests are not often used anymore. Both meat and supplements have the same net result and take approx the same time to metabolize. Guess it comes down to preference. I bought Creatine supplement at GNC because I found that taking the supplement over the course of the few days before the test was a lot easier than having to prepare steaks, or have a burger joint at my disposal.
Not bad testingsux but let me make 2 corrections. Keep up with the high fiber up until the test. It's a urine test and not a fecal test so you want the fiber to help remove bile which can help redirect THC metabolites to the feces.

Next, EMIT is actually quite popular. First an immunoassay is used to test the sample then non negatives get GC/MS confirmation. EMIT is one type/brand of immunoassay test but the thing is it may have been redesigned in the last few years. It can't hurt to take the aspirin just in case it still works and the immunoassay used is EMIT.