Amakhukhi aphenduke ukudla okunoshukela omningi, okunamafutha amaningi.Ngokuthuthukiswa kwezinga lokuphila kwabantu.Ukudla okunamafutha amaningi kanye nokudla okunamafutha amaningi kakhulu, futhi ukudliwa kwe-fiber yokudla kuncipha.Ukusetshenziswa kwamakhukhi kuzonyusa izehlakalo "zesifo sempucuko".Ngakho-ke, ukuthuthukiswa kwamabhisikidi ane-fiber yokudla kubaluleke kakhulu.

Isigaba samakhukhi sithathe cishe u-5% wokuthengiswa konyaka ngo-2012. Ngenxa yokukhula okusheshayo kwamakhukhi we-blue can namakhukhi omqhele, imboni iyonke ibonisa isimo esiphuthumayo.Amabhizinisi angaphezu kosayizi obekiwe abandakanyeka kancane kancane.Izinga lokukhula kwamanje lilinganiselwa ku-11%.Izinga lokukhula kwesigaba liphezulu kunezinga lokukhula kwemboni yamabhisikidi.Ngemakethe yamabhisikidi e-rod-end Imakethe ilindele ukukhula kwesidingo esikhulu embonini ngokuhamba kwesikhathi.