I'm specifically interested in learning more about energy drinks such as Red Bull, Rock Star, Xyience, Sobe, NOS, Monster, 5-Hour Energy, etc. and not the Starbucks coffee substitutes or actual coffee/espresso. Despite some associated health concerns, most of which aren't proven, there are people who swear by the effectiveness of energy drinks. Some prefer the flavor to coffee and they're particularly more convenient for people who are on the go. When I'm not drinking coffee, my go-to energy drinks are either the Blue can Rockstar, 0 Carb, 0 Sugar with Wild Berry Flavor or the Black can Xyience, 0 Sugar, with Apple-Flavor. These two selections have always kept me alert without the early jitters or the late crash. Plus, they're healthier options than some others with 60+grams of sugar per serving.
Neverthless, most of these energy drinks are loaded with some form of sugar and packed with tons of Caffeine and B-vitamins that are not effectively used by your body. Few companies display the amounts of the last two ingredients on the nutrition label. Instead, they post some sort of energy complex blend or proprietary blend amount. There are so many forms of energy supplments out there that things can get confusing.
I found some data however and hopefully others can provide more information...
Do not exceed 3 grams of Taurine/daily.
Do not exceed 1000 mg of Inositol/daily.
Do not exceed 550 mg of Choline/daily.
Do not mix Ginseng with Caffeine or Alcohol.
Guarana and Yerba Mate are forms of Caffeine.
100 mg Caffeine = Increased Mental Alertness
238 mg Caffeine = Increased Physical Endurance
Please shed some light on the topic of Energy Drinks and provide further information so we can better distinguish the good choices from the bad.