Izazinzulu zaseJamani zikholelwa ukuba iimveliso zecocoa zisebenza ngakumbi kuneti ekunciphiseni uxinzelelo lwegazi oluphezulu.Nangona kunjalo, bacebisa ukuba abantu bafanele batye itshokolethi emnyama eneswekile encinci, kuba itshokholethi eqhelekileyo inobutyebi kwiswekile kunye namafutha, kwaye iphezulu kakhulu kwiikhalori.Ezi ziintshaba zezigulane ze-hypertensive.
Ngokweziphumo zezazinzulu zaseJamani, ukutya okutyebileyo kwi-cocoa, njengetshokolethi, kunokunceda abantu banciphise uxinzelelo lwegazi, kodwa ukusela itiye eluhlaza okanye emnyama akunakufikelela kwimiphumo efanayo.Abantu kudala bekholelwa ukuba ukusela iti kunefuthe lokunciphisa uxinzelelo lwegazi, kodwa uphando lwezazinzulu zaseJamani luyibhukuqile le ngcamango.
Esi siphumo sophando sagqitywa nguNjingalwazi uDirk Tapot weYunivesithi yaseCologne, eJamani.I-monograph yakhe yapapashwa kushicilelo lwamva nje lwe-American Journal of Internal Medicine, eyijenali esemthethweni ye-American Medical Association.