Do energy drinks like Shark or Red Bull cause any illness ?

I consume Shark 2-3 times a week and Red Bull sometimes, so I am very interested in the answers.

via Smart Health Shop Forum http://feedproxy.google.com/~r/SmartHealthShopForum/~3/cpr7VXsjp6Y/9821-do-energy-drinks-like-shark-red-bull-cause-any-illness.html