Nej txhua tus paub tias cov piam thaj ntau - ntau cov teeb meem kev noj qab haus huv. Kev tshawb nrhiav tsis ntev los no tau ua pov thawj tias cov khoom neeg tsim dag muaj qhov tsis zoo rau lub cev, tab sis dhau ntawm lwm cov txheej txheem biochemical.
Qhov twg yog qhov muaj kev nyab xeeb: qab zib lossis cov khoom qab zib?
Xyoo tsis ntev los no, qhov txuas tau pom thaum kawg tsim los ntawm kev noj qab zib ntau dhau thiab kev rog dhau, mob ntshav qab zib thiab mob plawv. Txij li lub koob npe nrov ntawm cov piam thaj tau zoo heev tarnished, tuam ntxhab ntawm cov khoom qab zib txiav txim siab tsis txhob plam lub sijhawm thiab nce qib.
Cov khoom noj khoom qab zib yog tam sim no ntxiv rau ntau txhiab leej ntawm cov zaub mov thiab cov tais diav, ua rau lawv yog ib qho ntawm cov khoom noj zoo tshaj plaws hauv ntiaj teb. Siv lub sijhawm los sau tias "tsis muaj calories" nyob ntawm yam khoom, cov neeg tsim khoom noj muaj cov khoom noj tsis tshua zoo thiab muaj cov khoom noj txom ncauj tsawg thiab cov khoom qab zib uas muaj qab zib txaus kom txaus siab txawm tias nyiam cov hniav qab zib.
Tab sis tsis yog txhua txhua qhov teeb meem yog kub. Qhia tawm ntau cov kev tshawb fawb uas poob deb Khoom Qab Zib Dag Dag Kev Nyab Xeeb Cov Lus DagCov. Nws tau tam sim no tau pom tseeb tias kev haus ntau ntawm cov tshuaj no tseem tuaj yeem ua rau kev rog rog thiab mob plab zom mov.
Ntawm qhov kev sim Biology 2018 lub rooj sib tham tau teeb tsa hauv San Diego thaum kawg lub Plaub Hlis, cov kws tshawb fawb tau tsa qhov teeb meem no thiab qhia txog qhov cuam tshuam nruab nrab, tab sis cov txiaj ntsig zoo ntawm kev kawm tshiab.
Saib Lom Zem Kawg Li
Brian Hoffman, tus kws tshaj lij ntawm cov kws tshawb fawb txog biomedical engineering ntawm Marquette University thiab University of Wisconsin College of Medicine hauv Milwaukee, thiab tus kws tshawb fawb tau piav qhia tias yog vim li cas nws thiaj txaus siab txog qhov teebmeem no: “Txawm hais tias muaj suab thaj nyob hauv peb txoj kev noj zaub mov txhua hnub nrog cov khoom noj uas tsis muaj txiaj ntsig qab zib, qhov nce ntawm kev rog thiab ntshav qab zib hauv cov pejxeem. Lub ntiaj teb tseem pom muaj. "
Dr. Hoffman kev tshawb fawb tam sim no yog qhov kev qhia tob tshaj plaws ntawm kev hloov biochemical hauv tib neeg lub cev los ntawm kev siv khoom neeg hloov pauv. Nws tau ntseeg tau pov thawj tias muaj neeg coob ntawm cov zaub mov uas tsis muaj calorie ntau tuaj yeem pab txhawb kev tsim cov rog.
Cov kws tshawb fawb xav kom nkag siab tias cov piam thaj thiab cov kua qab zib ua rau cov leeg ntshav hauv ntshav - endothelium vascular - siv nas ua piv txwv. Ob hom qab zib tau siv rau kev soj ntsuam - qabzib thiab fructose, nrog rau ob hom calorie-free sweeteners - aspartame (ntxiv E 951, lwm cov npe sib luag, Canderel, Sucrazite, Sladex, Slastilin, Aspamiks, NutraSweet, Sante, Shugafri, Sweetley) thiab cov potassium acesulfame ( additive E950, tseem hu ua acesulfame K, otizon, Sunnet). Kuaj tsiaj txhu tau noj zaub mov nrog cov tshuaj ntxiv thiab qab zib ntawm peb lub lis piam, thiab tom qab ntawd lawv cov kev ua tau zoo sib piv.
Nws muab tawm tias ob qho tib si qab zib thiab cov piam thaj ua rau muaj kev tsis zoo rau lub xeev cov hlab ntsha - tab sis ntawm kev sib txawv. "Ntawm peb cov kev tshawb fawb, ob qho tib si qab zib thiab khoom qab zib zoo li ua rau cov kev tsis zoo cuam tshuam nrog kev rog thiab ntshav qab zib, txawm hais tias los ntawm cov kev sib txawv heev," Dr. Hoffman hais.
Kev hloov pauv biochemical
Cov suab thaj thiab cov khoom qab zib ua rau muaj qhov hloov pauv ntawm cov rog, amino acids, thiab lwm yam tshuaj lom neeg hauv cov ntshav nas. Khoom qab zib tsim, thaum nws tig, hloov cov tshuab uas ua rau lub cev ua cov rog thiab tau txais nws lub zog.
Kev ua haujlwm ntxiv tam sim no yuav xav tau los daws qhov kev hloov pauv no txhais tau li cas hauv lub sijhawm ntev.
Nws kuj tau tshawb pom, thiab nws tseem ceeb heev, tias cov khoom qab zib acesulfame potassium maj mam ntxiv hauv lub cev. Thaum muaj kev sib txuam ntau dua, cov kev puas tsuaj rau cov hlab ntsha tau hnyav dua.
"Peb tau pom tias hauv lub xeev muaj ntsis, koj lub cev ua suab thaj kom zoo, thiab thaum lub sijhawm ua haujlwm ntau dhau rau lub sijhawm ntev, lub tshuab no rhuav," Hoffmann piav qhia.
"Peb kuj tau pom tias hloov cov suab thaj nrog cov khoom noj uas tsis muaj txiv ntoo ua rau muaj kev hloov pauv tsis zoo rau cov rog thiab lub zog ntawm lub cev."
Alas, cov kws tshawb fawb tseem tsis tuaj yeem teb lo lus nug feem ntau hlawv: uas muaj kev nyab xeeb dua, qab zib lossis qab zib? Ntxiv mus, Dr. Hoffan cav tias: "Ib tus tuaj yeem hais - tsis txhob siv cov khoom qab zib, thiab nws tau mus txog thaum kawg. Tab sis txhua yam tsis yooj yim thiab tsis meej kiag li. tias cov khoom cua cuav, qhov kev pheej hmoo ntawm kev tsis zoo rau kev noj qab haus huv tau nce zuj zus, "tus kws tshawb fawb xaus.
Alas, muaj ntau cov lus nug tshaj li cov lus teb, tab sis tam sim no nws tau tseeb tias qhov kev tiv thaiv zoo tshaj plaws ntawm kev pheej hmoo yog qhov cuam tshuam hauv kev siv cov khoom muaj suab thaj thiab cov khoom qab zib.
