I would make sure to eat a lot of protein the night before, as well as the day of. That's what I used to do.
I've passed many of tests, but had to give up on all the dilution/substitution techniques a long time ago. The stress just wasn't worth it, especially once I entered my career (and not just testing for a coffee shop position). Now I just piss clean when I need to
Just wanted to tell you thank you for hosting us! I'm no good at doing recurring donations, but I'm more than happy to throw a little something when I've got some extra. Hope every little bit helps create something for everyone. Thanks as always!