I-9% yabantu unabanikazi be-rarest neqela elincinci legazi-yesine. Kubonakala ngenxa yokuxuba amaqela amabini nama-3. Kukho iimpawu zenye kunye namaqela egazi: ukuzola, ukuzinza, ukuguquguquka, ukuxhatshazwa, ukukwazi ukugxila kwiimeko ezinzima. Kodwa ukukhuseleka kwabantu abanjalo akunamandla kakhulu, baxhomekeke ekukhuselweni kwe-immune kunye ne-anemia.
Abameleli beqela legazi le-4 bafanele banike iinqununu kwimfuyo yomlenze, baphuze amaqanda kunye nemithambo. Ungadla zonke iintlobo zeentlanzi, ngaphandle kwezilwanyana zasemanzini, iimveliso zobisi kunye nobisi obomuncu, ubhontshisi obhontshisiweyo, ioli, iinantambo. Iimvumba kunye neembotyi akufanele zithande, ngakumbi ukuba emva kokusebenzisa kwabo ubunzima esiswini. Imifuno kunye neziqhamo (ngaphandle kwezityalo zepermrikhi) zivunyelwe kwisondlo kwiintlobo zegazi ezine ezingenakubalwa. Phuza i-herbal teas (ngaphandle kwe-lime), ngamanye amaxesha unako ukufumana ibhiya encinane, iwayini ebomvu neyomhlophe.
Kulabo abambelela kwi-4-blood-diet, umntu kufuneka akhethe iirephepheni, apho inyama kunye neesinkwa aziyi kuba khona kwiplani enye, kuba umzimba wabo ungasabela kakubi kule micimbi, nokuba ngaba ithathwa ngabanye ngabanye. Ukutya kwiqela legazi le-4 lilungele abantu ngokufanelekileyo, bobabini abane-positive factor and negative.