Well my personnal fav is redbull (I drink on average 2 or 3 cans daily)

the LD_50 (oral administration) for caffeine is approx 10g
a can of red bull contains roughly 80mg of caffeine

so (10 * 1000) / 80 = 125

i also normally suppliment them during the day with pro-plus (50mg), 2L CokeCola (12oz can is 45.6mg so it is approx 270mg) and strong coffee (100mg).

So my average consumption is :

  • 2x Redbull [ 80mg ] - 160mg
  • 3x ProPlus [ 50mg ] - 150mg
  • 2L Coke [ 270mg ]
  • 3x Coffee [ 100mg ] - 300mg


Giving me a grand total of 880mg per day
on top of which we have to allow for additional caffeine intake such as through chocolate etc but i think this would be quite low so I will ignore it.

this means that I am ingesting roughly 88% of the LD_50 for caffeine.....scary thought when I also think about when I go out drinking as well....vodka & redbull, Jack & coke...bound to put me over limit!