[lupusreal]

1 gram of caffeine is 10 to 20 caffeine pills. Nobody does this without knowing they've got a problem.

[hilbert42]

No doubt! 10 to 20 caffeine pills could be taken at once, my example was cups of coffee per day (rough estimate ≈100mg/cup). Taken over a day it would be better tolerated (but I'd still not consume that amount).