Asayansi aku Germany amakhulupirira kuti mankhwala a koko ndi othandiza kwambiri kuposa tiyi pochepetsa kuthamanga kwa magazi.Komabe, amanenanso kuti anthu ndi bwino kudya chokoleti chamdima chochepa cha shuga, chifukwa chokoleti wamba chimakhala ndi shuga ndi mafuta ambiri, komanso chimakhala ndi zopatsa mphamvu zambiri.Awa ndi adani a odwala matenda oopsa.
Malinga ndi zomwe asayansi a ku Germany apeza, zakudya zokhala ndi koko, monga chokoleti, zingathandize anthu kuchepetsa kuthamanga kwa magazi, koma kumwa tiyi wobiriwira kapena wakuda sikungatheke.Anthu akhala akukhulupirira kuti kumwa tiyi kumachepetsa kuthamanga kwa magazi, koma kafukufuku wa asayansi aku Germany adasokoneza lingaliroli.
Zotsatira za kafukufukuyu zinamalizidwa ndi Pulofesa Dirk Tapot wa pa yunivesite ya Cologne, Germany.Nkhani yake inasindikizidwa m'magazini yaposachedwa ya American Journal of Internal Medicine, yomwe ndi magazini yovomerezeka ya American Medical Association.