How much caffeine does espresso coffee contain?

How much is it? Depending on your metabolism, an adult weighing 70kg normally drinks less than 500mg per day, and the recommended intake is around 300-400mg of coffee per day from 4-6 cups.

How much is too much? It depends on how fast your body metabolises caffeine, but as a general rule: "A high dose of caffeine is 500mg per day, based on a 70kg adult, which works out at six to eight cups of instant coffee," says Karen Dickinson, of Body Acoustics Health and Sports Nutrition. "A moderate dose is 300 to 400mg per day; four to six cups. "

How much caffeine does a typical drink contain? The following is the caffeine content per 100 ml unit:

Here's how much caffeine (in mg per 100ml) is contained in some of your favourite beverages...

Coca-Cola: 9.7 mg/100ml

Instant Coffee: 24.1 mg/100ml

Espresso Coffee: 173.6 mg/100ml

Hand brewed black coffee Plunger Coffee: 45.4 mg/100ml

Decaf (instant) Coffee: 1.1 mg/100ml

Diet Coke: 12.7 mg/100ml

Energy drink Lift Plus: 14.5 mg/100ml

Pepsi Max: 19.4 mg/100ml

Diet Pepsi: 10.1 mg/100ml

Red Bull: 32 mg/100ml

Red Bull Energy Shot: 133.3 mg/100ml

Tea (white): 6.3 mg/100ml

V Pocket Rocket Energy Shot: 266.5 mg/100ml