Can’t believe I’m embedding a tweet from Donald Trump, Jr., but he’s correct in principle. The LD50 of caffeine is more like 10-20 grams depending on weight, though, not 2 grams. Two grams would be enough to kill most kids, however, as they are both more sensitive to it and weigh less.

Dose matters. You can even overdose on water. And yes, people do die from water overdoses.