There's no real reason to go cold turkey from caffeine. I've gotten to over 600mg/day. Not quite 1000mg though. :) Even so, when I have cut back (which I've don

There's no real reason to go cold turkey from caffeine. I've gotten to over 600mg/day. Not quite 1000mg though. :) Even so, when I have cut back (which I've done, multiple times) I just reduce my usage over 1-2 weeks and it's fine.