omgfactsofficial:

Humans can be poisoned by chocolate just like dogs!

Ever wonder why we can eat so much chocolate but dogs can’t? Chocolate poisoning, or theobromine poisoning, is an adverse reaction to the alkaloid theobromine found in chocolate, tea, and even cola. Cacao beans contain around 1.2% theobromine by weight.

It can be safely consumed by humans, however, if we were to eat enough we have an extremely likely chance of being poisoned While dogs are the most common victims of chocolate poisoning, reports of the elderly being sent to the emergency room for eating too much chocolate because their digestive system can’t handle the theobromine anymore are relatively common! Symptoms include nausea, vomiting, diarrhea, seizures, internal bleeding, heart attacks and eventually death!

(Source)

from OMG Facts http://bit.ly/ytsUk8