Baninzi ukutya jolisa kwinto eyaziwa njenge makro-izondlo okanye iiproteni, amafutha kunye neecarbohydrate, ezinokuthi zibonelele phantse zonke iikhalori zakho zemihla ngemihla kwaye ezi ziyongezwa nazo izakhamzimba ezincinci okanye iivithamini, iiminerali, ifayibha yokutya, ehlala iqulethwe kwifomathi ye- iikhabhohayidrethi.
Isifundo esenziwe eHarvard senziwa uvavanyo olomeleleyo lweklinikhi apho abantu abangama-800 abatyebe kakhulu balandelwa iminyaka emibini. Eli qela labekwa kolunye lweentlobo ezine zokutya, ukusukela kumgangatho ophantsi weecarbohydrate kunye namafutha, ukuya kwezi ziphezulu kwiicarbohydrate kunye namafutha asezantsi.
Ngenxa yoko, kwafunyaniswa ukuba ngaphandle kwezakha-mzimba ezikhulu, abaguli baphulukana nobunzima obulinganayo, malunga neepawundi ezili-13 emva konyaka omnye, zizonke ezi-8 zeepawundi ekupheleni kweminyaka emibini.
Kuya kufuneka kuthathelwe ingqalelo ukuba ukutya okunamafutha asezantsi kakhulu kunika isilingo sokutya ii-carbohydrate ezilula (eziyingozi empilweni), endaweni yee-carbohydrate ezintsonkothileyo, ukwandisa umngcipheko wokunganyamezelani kwe-insulin kunye iswekile.
Ukutya okufanelekileyo kakhulu kwimpilo yonke yomzimba, ngulowo okwaziyo ukugcina ubunzima, impilo yamalungu kunye namalungu, ingoyena ukhomba ekusebenziseni kancinci amanqatha kunye neecarbohydrate ezintsonkothileyo, ikakhulu zemvelaphi yendalo, ngaphandle Ukufuna iziphumo ezikhawulezayo ezigcina zonakalise impilo kuphela.