Dakota Johnson's caffeine misadventure leads to sleepless nights

Dakota Johnson, in one of her recent interviews, admitted that she had mistakenly consumed too many energy drinks for a while. The actress was convinced she was drinking vitamin beverages. It wasn't until later that she noticed the label on the can indicating the caffeine content.

Dakota Johnson is a popular American actress who gained massive fame for her role in "Fifty Shades of Grey". Recently, the star debuted in a new role - her short film "Loser Baby" premiered at the Toronto International Film Festival.

In an interview with "Variety", the actress shared her "adventure" with energy drinks. She consumed the beverages in large quantities, not realising they weren't "ordinary, natural drinks".

Dakota Johnson revealed that for a while she drank two energy drinks a day. Because of this amount, she couldn't sleep at night - initially, she was sure it was due to the vitamins A and B12 in the ingredients.

- I didn't realize that I was basically overdosing on caffeine - she admitted during the conversation with "Variety".

It turns out that one can (approximately 330 ml) of Dakota's favourite drink contains between 200 and 300 milligrams of caffeine. For comparison, a regular cup of coffee contains only about 90 milligrams. By drinking two cans of the drink, she consumed as much caffeine as four of the most popular energy drinks on the market.