Calories and sugar aren't usually at the forefront; it's caffeine ... into these 10 Starbucks drinks that are shockingly high in calories. Just to clear something up right away, most of the ...

The caffeinated beverage market in the US has ‘changed dramatically’ over the past 10 years, according to a new survey.

Extremely high daily intakes of 1,000 mg or more per day have been reported to cause nervousness, jitteriness and similar symptoms in most ... drink a lot of coffee or other caffeinated beverages ...