As the old saying goes, sometimes too much of a good thing can be bad. But what about when it comes to coffee?

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 ...

Do you get the shakes after drinking coffee, or feel anxious after sipping a fizzy drink? Here’s how to know if you are hyper-sensitive to caffeine. While you may be jealous of those who can get ...

It also contains our friend caffeine. And let’s be honest, anyone who’s found pouring the third mug of the day before 10am does tend to receive a raised eyebrow. But is too much coffee ...

This amount of caffeine equates to about four cups of coffee or two 5-Hour Energy shots. Too much caffeine can lead to an upset stomach, anxiety, headache, insomnia, and more. If grabbing a coffee ...