I'll drink one once a month if even. sometimes before a huge training session
i drank two redbulls one time before a football game and i was going hard for a little bit but then i overheated like halfway through the second quarter and had to sit out because i pretty much passed out after running for like 50 yards one play
so yeah theyre trash imo, pretty unhealthy, if you really need energy that badly eat some food, or drink a little coffee