I mean, in terms of getting your caffeine, Redbull is basically the least poison in the game. It's not even a lot of caffeine and doesn't contain a lot of the other shit that stuff like Monsters contain.
Like really, checkout the redbull ingredient list sometime. There's not much to it.
Not saying it's healthy at all. Nobody should really be drinking energy drinks, but Redbull is probably the least awful of the bunch.
technical there are many "non energy drinks" which have no less caffeine or other wake-up effects as energy drinks.
But funnily one of the ways Red Bull works is by giving you Vitamin B12 and Magnesium,
which are commonly on a slight deficit in, case where people take energy drinks. They can lead to a noticeable feeling of boosted energy in a similar time as caffeine takes effect (ironically Caffeine takes 15-30min to take effect, anything before is either something else or a placebo effect...). In general if you have problems with low energy in the morning taking B12+Magnesium alongside the breakfast is a things worth trying out (just maybe not by drinking a Red Bull :=) ).
Their business is basically selling poison but creating such absurd quantities of great free entertainment that everyone forgives them.