A Grande 16oz Coffee from Starbucks contains FOUR TIMES MORE CAFFEINE than an 8.4oz Redbull
330mg VS 80mg
A Grande 16oz Coffee from Starbucks contains almost 2.5 TIMES MORE CAFFEINE than an 16oz McDonald's Coffee.
330mg VS 133mg
Even though a morning jolt can make the mornings easier to deal with, it is important that people are aware of the potential effects of drinking TOO MUCH CAFFEINE. Although moderate caffeine consumption isn't likely to cause harm, drinking more than 500mg can cause:
At 260mg of Caffeine, it would only take two tall 12oz coffees from Starbucks to put you over 500mg!
Mayo Clinic Online, (March, 2011). "Caffeince: How much is too much?" 1998-2013. Mayo Foundaition for Medical Education and Research.
Center for Science in the Public Interest. (2013). "Caffeine Content of Food and Drugs"