Caffeine is generally safe to drink up to 400 milligrams a day, according to the Food and Drug Administration (FDA). That's equivalent to about four or five cups of coffee. For the average person, ...

Medically reviewed by Karina Tolentino, RD Key Takeaways Caffeinated coffee is more likely than decaffeinated coffee to help ...

It’s a kick-start for the day, a jolt many of us need to power through, and one of the last socially acceptable addictions. It’s only when we have to go without coffee that we realise how badly we ...

Coffee beans naturally contain caffeine, a stimulant that many use to combat fatigue. In order to create decaffeinated coffee, the caffeine must be removed from the bean using a chemical process. Many ...