"Black Insomnia," billed as "The World's Strongest Coffee" because of its incredible caffeine content, has been unleashed onto the United States and has also launched health concerns about that unnaturally high caffeine content.

Black Insomnia's unadulterated caffeine content comes to 17,524 mg of caffeine per kilogram, according to laboratory test results using High-Performance Liquid Chromatography made by SGS Laboratories, the world's leading inspection, verification, testing and certification company.

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Black Insomnia Coffee Company, the South African company that launched Black Insomnia in July 2016, said the certified results from SGS laboratories indicate Black Insomnia is the clear winner in the title for The World's Strongest Coffee.

It said Black Insomnia Coffee is 27 percent stronger then Wodfee (13,809 of caffeine per kg) and DeathWish Coffee (13,179 kg of caffeine per kg). The results mean Black Insomnia is 33 percent stronger than either of these competing brands.

Caffeine Informer, the International caffeine reference website, has accredited Black Insomnia as the World's Strongest Coffee. Black Insomnia retails at $19 per pound and is available on Amazon Prime.

Black Insomnia Coffee Company founder Sean Kristafor said he was motivated to develop Black Insomnia because it was "time to offer something a little different -- something stronger and darker, with an edge."

He said Black Insomnia is pure and naturally very high in caffeine without any added chemicals, preservatives, sugars or any other additives.

Black Insomnia was developed by one of the world's foremost roasters, Gerald Charles, who combined the perfect blend of beans to produce an indulgent smooth sweet nutty flavor.

Its high caffeine content, however, might be a source of medical concern. The U.S. Food and Drug Administration recommends 400 mg of caffeine for daily consumption while the International Food Information Council recommends 300 mg.

This means that for the same amount of coffee, someone that drinks a cup of Black Insomnia will get double the amount of caffeine. Black Insomnia contains 17,500 mg (17.5 grams) of caffeine per kilogram of coffee.

The company, however, noted Mayo Clinic reporting that up to 400 mg (equivalent to 6 mg/kg body weight in a 65 kg person) of caffeine a day appears to be safe for most healthy adults.

"That's roughly the amount of caffeine in four (6 oz) cups of brewed coffee," said Mayo.

Having just one 6 oz cup of Black Insomnia almost fulfills the recommended maximum intake, said Black Insomnia Coffee Company.

TagsBlack Insomnia, The World's Strongest Coffee, caffeine, caffeine content, Black Insomnia Coffee Company, Wodfee, DeathWish Coffee, Sean Kristafor