They're everywhere: beverages that promise to keep you energized, revved, and alert. But labels don't have to reveal how much caffeine the products pack. We will. We measured the amount in 27 top ...

Drinking green tea has its benefits, but it has caffeine, too. A good caffeinated beverage is a favorite of many folks—especially in the morning. While coffee holds the top spot for the nation ...

How does matcha's caffeine content compare to other drinks? Matcha treads the middle of the road when it comes to caffeinated beverages. Here's how it lines up: Is matcha good for you? Can ...