What will water come up on a drug test?

Water itself does not show up on a standard drug test, as drug tests typically screen for specific substances like THC, cocaine, opiates, or amphetamines. However, excessive consumption of water before a test can dilute urine, potentially affecting the accuracy of the results. In some cases, dilution may lead to a non-negative result, prompting further testing. It's important to follow guidelines and not attempt to cheat drug tests.