Kushayikwa kwevithamini mumutumbi wemunhu kunogona kutungamirira kune zvirwere zvakasiyana-siyana, izvo zvinokonzerwa nekusakwanisa kwekuita kwehupenyu hwechimiro mune mavhitamini.
Kwenguva refu, vanhu vakaziva chirwere chinonzi scurvy. Chirwere ichi kazhinji chaitambudzwa nevashambadzi vaifamba rwendo rurefu kwemwedzi yakawanda. Scurvy inoratidzwa nekuwedzera fragility yemadziro emidziyo yeropa, kubuda ropa, kusunungura nekurasikirwa kwemeno. Imwe mushure mokunge mawanikwa mavithamini yakawanikwa kuti scurvy inokura nekushaikwa mumuviri we vitamini C (rimwe zita re vitamini iyi is ascorbic acid). Zvinotarisa kuti pakusipo kweiyo zvinhu mukati mevanhu, collagen protein synthesis inokanganiswa, inotungamirira kumigumisiro yakadaro isina kunaka. Uye iyo yekuti scurvy muMiddle Ages yaiwanzowanika mumigungwa yegungwa, inokonzerwa nekuti munguva yekare nguva yekugovera michero nemiriwo mutsva zvakaguma pakarepo pazvikepe. Iko zvino yava kuzivikanwa kuti ascorbic acid inowanikwa zvikuru mumiti yemiti yakabva. Pakutanga iyi chokwadi chakanga chisingazivikanwi (kunyanya sekureva mavhithamini nenzira yakadai mumasayendisiti akatanga kutaura chete muna 1880). Iye zvino chirwere chinokonzerwa nekushayikwa kwevhitamini C, hachisi chakakurumbira, uye chikonzero chikuru chekuitika kwacho ndechekusawirirana kwakakomba mune zvinovaka muviri. Kana iwe zuva nezuva uchidya zvishoma zvishoma miriwo kana michero, iwe haufaniri kutya kutaridzika kwechirwere ichi.
Kune zvirwere zvinokonzerwa nekushayikwa kwevhitamini A, hememelopia, kana, sevanhu vanodana chirwere ichi, "hupofu hweusiku". Nehutano hwehutano, munhu anoona zvakanaka masikati, asi panguva yemasikati, anonzwisisa zvakanyanya zvinhu zvakapoteredza. Izvi zvinogona kuonekwa sechiratidzo chekutanga chekubuda kwevhitamine A mune zvekudya. Nekuwedzera kwevhitamini A mukushaya muviri kwevanhu, xerophthalmia inokura, iyo inoratidzwa nekuoma kwemakona eziso. Kakawanda chikonzero chekuvandudzwa kwezvirwere izvi kuputsa kwekudya uye kutakura mumuviri wemafuta. Sezvo vitamini A yakasvibiswa-mafuta, nekuda kwekuputsa kwemasabolism emafuta mumuviri uye kune kushaya kwechigadzirwa chechi biologically, kunyange zvazvo zvokudya pachazvo zvinogona kuva nehuwandu hwakawanda hwevhitamini A. Kana zvakadaro, pane kushaikwa kwevhitamini A mukudya, zvino mamiriro ezvinhu ari nyore ruramisa kuiswa mumutambo wezvokudya kubva kune karoti, tomato, dill.
Kushaikwa kwe vitamini D kunokonzera chirwere chevana chinonzi rickets. Nechirwere ichi, nzira yakarongeka yehutachiona hwemigodhi inoputika, uye kukura kwemeno kunonoka. Zvitubu zve vitamini D ndizvo zvakadai sekudya, chiropa, mazai yolk. Chizhinji chevhitamini D chinowanikwawo mumafuta ehove.
Vitamin E inonyanya kukosha yezvinhu zvinokonzerwa nehupenyu hunoita kuti zvirongwa zvepanyama zvekuvandudza hutano hwekubereka. Nekushaikwa kwevhitamini E mune varume, kuumbwa kwepermatozoa hakuna kukwana, uye mumadzimai, pangangodaro kuve nekukanganisa mukugadzirwa kwe fetus. Maitiro ezuva nezuva e vitamin E anowanzogoverwa nekushandisa kwemiti yakadai semafuta emichero, zviyo, lettuce, kabichi.
Zvirwere izvi zvinopa pfungwa yakajeka yokuti kusasha kwevamwe mavitamini muzvokudya zvevanhu zvinokonzera kukura kwehutano hwakasiyana-siyana. Nokudaro, kuitira kuti tidzivise kukura kwezvirwere izvi, tinofanira kuedza kuita kuti kudya kwedu kuve kwakasiyana-siyana sezvinobvira, kusanganisira mishonga yakasiyana-siyana yemhuka uye yemichero yakabva. Nzira yakadaro ichabvumira, kana zvichibvira, kuve nechokwadi chekusiyana kwezvinhu zvakasiyana-siyana zvezvinhu zvinokonzerwa nehupenyu muzvokudya uye kudzivirira kukura kwezvirwere zvinokonzerwa nekushaya mavitamini.