Out of all the foods and drinks we consume, coffee contains the highest amount of caffeine. But, the specific amount of caffeine in a cup of coffee can differ depending on multiple factors.
All of these drinks contain caffeine, a naturally occurring stimulant that, according to Medical News Today, is the world’s most widely consumed drug. Caffeine affects your body’s central ...
Besides containing high amounts of caffeine, many energy drinks also contain large quantities ... (although it can be slower if you have it with food), and the effects can last for 3-5 hours.