Can caffeine be lethal?

serpa

Yes. LD50 = amount it takes to kill 50% of the people. The LD50 of caffeine in humans is dependent on weight and individual sensitivity and estimated to be about 150 to 200 milligrams per kilogram of body mass, roughly 80 to 100 cups of coffee for an average adult taken within a limited time frame that is dependent on half-life. Though achieving lethal dose with caffeine would be exceptionally difficult with regular coffee, there have been reported deaths from overdosing on caffeine pills, with serious symptoms of overdose requiring hospitalization occurring from as little as 2 grams of caffeine. http://en.wikipedia.org/wiki/Caffeine Apr 03 10, 5:29 PM

serpa

Here is a caffeine calculator. Use it to find out how much of a certain product it would take to kill yourself! I can't attest to it's veracity, bit it's fun to use for a couple of minutes! http://www.energyfiend.com/death-by-caffeine Apr 03 10, 5:34 PM

Shravan1

The eminent philosopher Voltaire supposedly used to drink 50 cups of coffee every day. Caffeine didn't seem to do him much harm! Apr 04 10, 10:24 PM