Matcha tea is a very popular drink these days, particularly as another source of caffeine. Here's how much caffeine is ...

If you need some coffee to get you through the day, Starbucks has you covered. Here are the drinks you should order if you want the highest caffeine content.

By comparison, an 8-ounce cup of coffee has about 100 milligrams; a 16-ounce Starbucks Grande, 330 milligrams. Five of the 16 products that list a specific amount of caffeine—Arizona Energy ...

Adults can safely consume up to 400 milligrams of caffeine daily, which equates to roughly three cups of coffee, says Alissa Steinberg, a registered dietitian and founder of Healthy U. During ...

“Caffeine adds up quickly if you're a coffee drinker,” says Steinberg. To put it in perspective: A single venti brewed coffee from Starbucks contains 410 milligrams of caffeine. It’s ...