So can you on third day of methamphetamine fast, but I don't think I'd recommend it to anyone.
OP was making a comment about efficacy of water fasts; to compare water fasts to meth is pretty wild.
I think they were comparing a water + meth diet with a water + caffeine diet.
I confirm that you are right. It sounded funnier in my head.
Why drink water when you can drink METH?
Is crystal meth "salt"?
I reflexively cut people who interrupt my focus on any fast longer than a few hours... okay maybe not cut, but the hangry is way too intense to interact with humanity.
It's the "must hunt" instinct cutting in on that third day. I loved day 3 of the fast! I fasted 3 days a week for months, loved it.