I've heard people have even died from caffeine overdoses [0]. We should ban coffee, soda and energy drinks while we're at it.

EDIT: While my argument is sarcasm, there's both a change.org petition to ban raw caffeine [1], along with several senators who support such a ban [2].

0: https://www.nbcnews.com/health/health-news/south-carolina-te...

1: https://www.change.org/p/u-s-food-and-drug-administration-in...

2: http://cen.acs.org/articles/94/i18/US-senators-push-ban-caff...