Uphononongo olutsha lubonisa ukuba ukuxuba okwenziweyoiiswitiezinecarbohydrates ziyaluguqula ubuntununtunu bomntu kwincasa eswiti, nto leyo enokuchaphazela ubuntununtunu be-insulin.Ukungcamla ayisiyomvakalelo nje esivumela ukuba sonwabele ukutya okuluncuthu—idlala indima ebonakalayo ekugcineni impilo.Ukukwazi kwethu ukungcamla incasa engathandekiyo kuye kwanceda abantu baphepha izityalo ezinetyhefu nokutya okonakeleyo.Kodwa incasa inokunceda imizimba yethu ihlale isempilweni ngezinye iindlela.
Uvakalelo lomntu osempilweni kwincasa eswiti kuvumela umzimba wakhe ukuba ukhuphe i-insulin egazini xa loo mntu esitya okanye esela into eswiti.I-insulin yihomoni ephambili indima yayo ephambili kukulawula iswekile yegazi.
Xa uvakalelo lwe-insulin luchaphazeleka, iingxaki ezininzi zemetabolism zinokukhula, kubandakanya nesifo seswekile.Uphando olutsha olukhokelwa ngabaphandi abavela kwiYunivesithi yaseYale eNew Haven, CT, kunye namanye amaziko emfundo ngoku yenze into emangalisayo.Kwiphepha lokufunda elipapashwe kwi-Cell Metabolism, abaphandi babonisa ukuba indibaniselwano yokwenziwaiiswitikwaye iicarbohydrates zibonakala zikhokelela kubuntununtunu be-insulin obuhlwempuzekileyo kubantu abadala abasempilweni."Xa sizimisele ukwenza olu cwaningo, umbuzo owawusiqhubela ukuba ngaba ukusetyenziswa ngokuphindaphindiweyo kwe-sweetener eyenziweyo kuya kubangela ukuthotywa kwekhono lokuxela kwangaphambili i-sweet taste," kuchaza umbhali ophezulu uProf Dana Small."Oku kuya kubaluleka ngenxa yokuba i-sweet-taste perception inokulahlekelwa amandla okulawula iimpendulo ze-metabolic ezilungiselela umzimba ukuba udibanise i-glucose okanye i-carbohydrates ngokubanzi," uyongezelela.Kuphononongo lwabo, abaphandi baqesha abantu abadala abasempilweni ye-45 abaneminyaka eyi-20-45, abathi abazange basebenzise i-sweeteners ephantsi kweekhalori.Abaphandi abazange bafune ukuba abathathi-nxaxheba benze naluphi na utshintsho kwizidlo zabo eziqhelekileyo ngaphandle kokusela iziselo ezisixhenxe zeziqhamo ezinencasa kwibhubhoratri.Iziselo mhlawumbi zinento yokwenza nesimuncumuncu eyenziweyosucraloseokanye iswekile yetafile eqhelekileyo.Abanye abathathi-nxaxheba-ababefanele ukuba benze iqela lokulawula - babeneziphuzo ezinoshukela ze-sucralose eziqulethe i-maltodextrin, eyi-carbohydrate.Abaphandi basebenzisa i-maltodextrin ukwenzela ukuba bakwazi ukulawula inani leekhalori kwiswekile ngaphandle kokwenza isiselo esimnandi.Olu vavanyo lwahlala kwiiveki ze-2, kwaye abaphandi baqhuba iimvavanyo ezongezelelweyo - kubandakanywa i-MRI scans esebenzayo - kubathathi-nxaxheba ngaphambi, ngexesha, nangemva kovavanyo.Iimvavanyo zavumela izazinzulu ukuba zihlole naluphi na utshintsho kumsebenzi wengqondo yabathathi-nxaxheba ekuphenduleni ukuthanda okuhlukeneyo-kuquka i-sweet, emuncu, kunye netyuwa-kunye nokulinganisa ingcamango yabo kunye novelwano lwe-insulin.Ukanti, xa babehlalutya idatha ababeyiqokelele ukuza kuthi ga ngoku, abaphandi bafumana iziphumo ezimangalisayo.Yayiyiqela elijoliswe ekulawuleni - abathathi-nxaxheba abaye bathatha i-sucralose kunye ne-maltodextrin kunye - ebonisa iimpendulo ezitshintshileyo zengqondo kwiintando ezimnandi, kunye nokuguqulwa kwe-insulin sensitivity kunye ne-glucose (iswekile) imetabolism.Ukuqinisekisa ubunyani bezi ziphumo, abaphandi bacele elinye iqela labathathi-nxaxheba ukuba basele iziselo eziqulathe i-sucralose yodwa okanye i-maltodextrin yodwa kwithuba leentsuku ezi-7 ezongezelelweyo.Iqela lafumanisa ukuba i-sweetener yodwa, okanye i-carbohydrate iyodwa ibonakala ngathi iphazamisana nencasa emnandi okanye uvakalelo lwe-insulin.Kwenzeka ntoni ke?Kutheni le nto i-sweetener-carb combo ichaphazele amandla abathathi-nxaxheba ekuboneni incasa eswiti, kunye novakalelo lwabo lwe-insulin?"Mhlawumbi umphumo obangelwa kumathumbu ovelisa imiyalezo engafanelekanga ukuthumela kwingqondo malunga nenani leekhalori ezikhoyo," ucebisa uProf. Small.“Amathumbu anokuba nobuntununtunu kwi-sucralose kunye ne-maltodextrin kwaye abonise ukuba iikhalori ezininzi ziphindwe kabini kunezo zikhoyo.Ngokuhamba kwexesha, le miyalezo ingachanekanga inokuvelisa iziphumo ezingalunganga ngokuguqula indlela ingqondo nomzimba osabela ngayo kwincasa emnandi, ”uyongeza.Kwiphepha labo lokufunda, abaphandi babhekisa kwizifundo zangaphambili kwiimpuku, apho abaphandi bondla iyogathi yezilwanyana eyongezelelekileyo.iiswiti.Olu ngenelelo, abaphandi bathi, lukhokelele kwiziphumo ezifanayo njengalezo abazibonileyo kuphononongo lwangoku, olubenza bacinge ukuba indibaniselwano ye-sweeteners kunye ne-carbs esuka kwi-yogurt inokuba noxanduva.“Uphononongo lwangaphambili kwiimpuku lubonise ukuba utshintsho kubuchule bokusebenzisa incasa eswiti ukukhokela indlela yokuziphatha kunokukhokelela kukungasebenzi kakuhle kwemetabolism kunye nokuzuza ubunzima ngokuhamba kwexesha.
Sicinga ukuba oku kungenxa yokusetyenziswa kwezinto ezenziweyoiiswitingamandla,” utsho uProf. Small.“Izinto esizifumeneyo zibonisa ukuba kulungile ukuba neDiet Coke kanye ngexesha elithile, kodwa akufanele usele nento enecarbohydrates eninzi.Ukuba utya iifries zaseFransi, kungcono ukusela i-Coke eqhelekileyo okanye-ngcono kodwa - amanzi.Le nto iye yatshintsha indlela enditya ngayo nendlela endimondla ngayo unyana wam.
Ixesha lokuposa: Mar-20-2020