This is an untested diuretic. Certa "has something to do with canning. Some people swear by it. Trouble is, it's always somebody else, a third party not present during the conversation, who uses it" (Pearson). I've heard rumors about people who smoked right up to the day before the test, consumed fruit pectin (a canning substance similar to Certa), and passed the test. However, there hasn't been any tests to validate those claims. Will someone with a lab at their disposal please test this stuff?
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