re: Mettsiah generated a dilute urine sample...

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What else dilutes the drug test besides water?

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Various masking agents like diuretics/water pills, diet pills, OTC medications and much more which essentially cause you to pee a lot and evacuate drugs out of your system and cause a dilute sample in the process. That's why when the Olympics roll around you hear of drug failures for all kinds of non-performance enhancing drugs that are on the IOC's banned list which is more inclusive than the NFL's. What a urine test measures to make sure it's urine is creatine - male atheletes in particular should have plenty of it. If there's little to no creatine in a sample it's not urine. You can also have hyper dilution, dilution, negative dilution (diluted sample but no drug present), and positive dilution (diluted sample but drug still present).

People also add things to urine to dilute it and depending upon how invasive the urine testing procedure is (and most aren't that invasive unless you've failed or come up dilute and they're watching you whiz) that can cause various results. And some legit medications can also mess up tests.

It's also worth noting this combine produced more fails than in recent years - more than 10 this year. LSU had two fails, FSU had multiples, Miami had one fail (surprised they only had one - they are Miami). It's not fair because it's guilt by association but it's never good when a team has more than one player fail.

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