Sarah Katz, 21, had a heart condition and was not aware of the drink’s caffeine content, which exceeded that of cans of Red Bull and Monster energy drinks combined, according to a legal filing
Sarah Katz, 21, had a heart condition and was not aware of the drink’s caffeine content, which exceeded that of cans of Red Bull and Monster energy drinks combined, according to a legal filing
Most people normally don't drink their caffeine over a 24 hour period. Maybe a couple hours. The half-life of caffeine in the body being about 5 hours, the peak concentration of caffeine won't be that much higher. Note the FDA doesn't say "400mg is safe but only if you don't drink it all at once."