Umdlavuza wamabele udlangile! Lokhu kungenxa yokuphuma kancane kanye nokubola kwezinsalela zenyama kukholoni. Abadla imifino abaphathwa yisifo esinjalo. Abantu abaningi abadla inyama bakholelwa ukuthi inyama ukuphela komthombo wamaprotheni. Kodwa-ke, ikhwalithi yale phrotheni iphansi kakhulu, ayifaneleki ukusetshenziswa komuntu, ngoba ayiqukethe inhlanganisela edingekayo yama-amino acid kanye namabhulokhi wokwakha amaprotheni.
Ucwaningo lubonisa ukuthi umuntu waseMelika ovamile uthola amaprotheni aphindwe kahlanu kunalawo awadingayo. Kuyiqiniso elaziwayo lezokwelapha ukuthi amaprotheni amaningi ayingozi. Okokuqala nje, ngenxa yokuthi i-uric acid, eyakhiwa ngesikhathi sokugaya amaprotheni, ihlasela izinso, ibulale amangqamuzana ezinso abizwa ngokuthi ama-nephron. Lesi simo sibizwa ngokuthi i-nephritis; umnyombo wokuvela kwawo izinso ezigcwele ngokweqile. Kunamaprotheni amaningi anempilo kusipuni esisodwa se-tofu noma ubhontshisi wesoya kunesilinganiso sokuphakelwa kwenyama!
Wake wakubona yini okwenzeka eqatha lenyama elihlala elangeni izinsuku ezintathu? Inyama ingahlala emathunjini afudumele okungenani izinsuku ezine ize igaywe. Iqamba amanga ilinde ithuba layo. Njengomthetho, ihlala lapho isikhathi eside - kusukela ezinsukwini ezimbalwa kuya ezinyangeni ezimbalwa. Odokotela bahlale bebona inyama emathunjini abantu abadla imifino eminyakeni eminingi edlule, okubonisa ukuthi inyama ihlala isikhathi eside ingagayeki. Ngezinye izikhathi inyama itholakala emathunjini abantu abadla imifino abaneminyaka engamashumi amabili yesipiliyoni!
Abanye abadla imifino bathi basutha kakhulu lapho bedla. Isizathu salokhu ukuthi ama-ketones ambalwa kakhulu (izinto zokugaya amaprotheni) akhiqizwa lapho amaprotheni emifino egaywa. Kwabaningi, ama-ketone abangela isicanucanu esincane nokuncipha kwesifiso sokudla.
Nakuba umzimba ufuna ukudla okwengeziwe, izinzwa zokunambitha ziyanengeka. Lokhu kuyingozi yokudla okudumile okunamaprotheni. Amazinga e-ketone aphezulu ngokungavamile abizwa ngokuthi i-ketosis futhi ahlotshaniswa nokucindezelwa kwendlala yemvelo, ukungakwazi kwesifiso sokudla ukubiza ukudla. Ngaphezu kwalokho, lapho izinga lama-ketone egazini liphezulu kakhulu, kuholela ekukhiqizweni okungavamile kwegazi okubizwa ngokuthi i-acidosis.
Amahlosi namabhubesi adla inyama futhi achume kuyo anama-asidi aqinile ezimisweni zawo zokugaya ukudla. I-hydrochloric acid yethu ayinawo amandla okwanele ukugaya inyama ngokuphelele. Ngaphezu kwalokho, amathumbu abo acishe abe ngamamitha amahlanu ubude, kuyilapho amathumbu omuntu ede ngokuphindaphindiwe - cishe amafidi angamashumi amabili.