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, ...

It tastes just like the real thing, helps you avoid late-day jitters, and still delivers that comforting coffee ritual — here ...

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 ...