ubuhleimpiloukudla

Ukuzuza kwesisindo akuhlobene nenani lokudla?!!

Ukuzuza kwesisindo akuhlobene nenani lokudla?!!

Ukuzuza kwesisindo akuhlobene nenani lokudla?!!

Namuhla, ithimba lososayensi baseMelika liyaphikisana, ocwaningweni olusha olunganelisa ingxenye enkulu yabantu, ukuthi izimbangela zomqedazwe wokukhuluphala zihlobene kakhulu nekhwalithi yalokho esikudlayo kunenani lokudliwayo.

Izibalo ze-US Centers for Disease Control and Prevention (CDC) zikhombisa ukuthi ukukhuluphala ngokweqile kuthinta abantu abadala baseMelika abangaphezu kuka-40%, okubabeka engcupheni yesifo senhliziyo, unhlangothi, uhlobo 2 sikashukela kanye nezinhlobo ezithile zomdlavuza, ngokusho kweSciTechDaily.

I-USDA Dietary Guidelines for Americans 2020-2025 iphinde yathi ukwehlisa isisindo kudinga ukuthi abantu abadala behlise inani lama-calories abawathola ekudleni naseziphuzweni futhi bakhulise umsebenzi womzimba.

Indlela yakudala "yebhalansi yamandla".

Le ndlela yokulawula isisindo nayo isekelwe kumodeli wokulinganisa amandla wekhulunyaka, othi ukuzuza isisindo kubangelwa ukusebenzisa amandla amancane kunalawo adliwayo.

Ezweni lanamuhla, nakuba umuntu ezungezwe ukudla okumnandi kakhulu, okudayiswa kakhulu futhi okushibhile okugayiwe, kulula ukuba adle ama-kilojoule amaningi kunalokho akudingayo, futhi lokhu ukungalingani okubhebhezelwa ukuphila kokunganyakazi kwanamuhla.

Akukho phuzu ngemva kwamashumi eminyaka yokuqwashisa

Kulo mbono, ukudla ngokweqile, kanye nokungawuvivinyi umzimba okwanele, kuholela kubhadane lokukhuluphala ngokweqile.

Ngakolunye uhlangothi, naphezu kokusatshalaliswa kwemiyalezo yokuqwashisa ngezempilo emashumini eminyaka adlule yokunxusa abantu ukuba badle kancane futhi bazivocavoce kakhulu, amazinga okukhuluphala kanye nezifo ezihlobene nokukhuluphala akhuphuke kancane kancane.

Abacwaningi bocwaningo bakhomba amaphutha ayisisekelo kumodeli yebhalansi yamandla, bethi enye imodeli, imodeli ye-carbohydrate kanye ne-insulin, ichaza kangcono ukukhuluphala kanye nokuzuza kwesisindo, futhi ikhomba indlela yezindlela eziphumelelayo, zesikhathi eside zokulawula isisindo.

Ukukhula kwentsha

Ngokusho kombhali oholayo wocwaningo uDkt David Ludwig, isazi se-endocrinologist eBoston Children's Hospital kanye noprofesa eHarvard Medical School, imodeli yokulinganisa amandla ayisizi ekuqondeni izimbangela zezinto eziphilayo zokuthola isisindo, kusukela ngesikhathi sokukhula, isibonelo, Intsha ingase idle ama-calories angu-1000 ngosuku. Kodwa asikho isiqiniseko sokuthi ukudla ngokweqile kubangela ukukhula ngesivinini noma ukuthi ukukhula ngokushesha kwenza osemusha azizwe elambile futhi edle ngokweqile.

Ngokuphambene, imodeli ye-carbohydrate ne-insulin yenza ukuthatha ngesibindi umqondo wokuthi ukudla ngokweqile akuyona imbangela eyinhloko yokukhuluphala.

Imodeli ye-carbohydrate-insulin ibeka icala elikhulu ngobhubhane lwamanje lokukhuluphala emaphethini esimanje okudla abonakala ngokusetshenziswa ngokweqile kokudla okunomthwalo ophakeme we-glycemic, phakathi kwawo ikakhulukazi, ukugaya ngokushesha ama-carbohydrate agayiwe, adala ukusabela kwamahomoni okushintsha kakhulu inqubo. .Ukusebenza komzimba womuntu nokuholela ekugcinweni kwamafutha, ukukhuluphala kanye nokukhuluphala.

Imfihlo yokuzizwa ulambile

Lolu cwaningo luphinde lwachaza ukuthi uma udla ama-carbohydrate acutshungulwe kakhulu, umzimba ukhulisa ukukhiqizwa kwe-insulin futhi ucindezela ukukhiqizwa kwe-glucagon, ihomoni ye-peptide ekhiqizwa amaseli e-alpha kumanyikwe.

I-Glucagon inyusa ukugcwala kweglucose namafutha acid egazini, futhi umphumela wayo uphambene nowe-insulin, owehlisa ushukela we-extracellular.

Ibe isitshela ama-fat cells ukuthi agcine ama-calories engeziwe, okushiya ama-calories ambalwa atholakalayo ukuze aphethise imisipha nezinye izicubu ezisebenza ngokusebenza kwe-metabolic. Ubuchopho bese bubona ukuthi umzimba awutholi amandla anele, okuholela ekuzizweni kwendlala.

I-metabolism nayo iyancipha emzamweni womzimba wokonga uphethiloli. Ngakho, umuntu uyaqhubeka ezizwa elambile futhi edla kakhulu, okuholela ekuzuzeni okuqhubekayo kwamafutha amaningi.

Ifomula enemininingwane eminingi

Nakuba imodeli ye-carbohydrate-insulin ingeyona entsha, njengoba imvelaphi yayo ihlehlela emuva ekuqaleni kwekhulu lamashumi amabili, umbono wocwaningo lwakamuva ungaba inguqulo egcwele kakhulu yale modeli kuze kube manje, eyabhalwa kanye neqembu labayi-17 emhlabeni jikelele. ososayensi abaqashelwayo nabacwaningi bezokwelapha njengochwepheshe emkhakheni wezempilo yomphakathi. Bebonke, ososayensi bafingqa indikimba ekhulayo yobufakazi obusekela imodeli ye-carbohydrate-insulin. Bahlonze uchungechunge lwemibono evivinywayo ebonisa amamodeli amabili ukuze aqondise ucwaningo lwangomuso.

Ukuncipha kwendlala nokuhlupheka

Ngaphezu kwalokho, ososayensi baphakamise ukuthi imodeli ye-carbohydrate-insulin imele enye indlela egxile kakhulu kwikhwalithi nokuqukethwe kwezakhi.

NgokukaDkt. Ludwig, ukunciphisa ukusetshenziswa kwama-carbohydrate agayeka ngokushesha agcwala ukudla ngesikhathi sokudla okunamafutha amancane kunciphisa umfutho oyinhloko wokugcina amafutha emzimbeni. Ngakho-ke, kungenzeka ukulahlekelwa isisindo esiningi ngokuzizwa okuncane kwendlala nokuhlupheka.

Ezinye izihloko: 

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URyan Sheikh Mohammed

IPhini loMhleli oMkhulu kanye neNhloko yoMnyango Wezobudlelwano, iBachelor of Civil Engineering - Umnyango weTopography - Inyuvesi yaseTishreen Uqeqeshelwe ukuzithuthukisa

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