"Shuga" tsvakurudzo
… Muna 1947, Center for Sugar Research yakapa chirongwa chetsvakiridzo chemakore gumi, $57 kubva kuHarvard University kuti ione kuti shuga inokonzera sei maburi mumazino uye kuti ingazvidzivirira sei. Muna 1958, magazini yeTime yakaburitsa mhedzisiro yekutsvagisa iyo yakatanga kubuda muDental Association Journal. Masayendisiti akafunga kuti pakanga pasina nzira yekugadzirisa dambudziko iri, uye mari yeprojekti yakabva yamiswa.
Chidzidzo chakanyanya kukosha chemhedzisiro yeshuga pamuviri wemunhu chakaitwa muSweden muna 1958. Yaizivikanwa se "Vipekholm project". Vanopfuura 400 vakuru vane utano hwepfungwa vakatevera kudya kunodzorwa uye vakaonekwa kwemakore mashanu. Zvidzidzo zvacho zvakakamurwa muzvikamu zvakasiyana. Vamwe vakatora macarbohydrates akaoma uye akareruka chete panguva yekudya kukuru, nepo vamwe vakadya zvimwe zvikafu zvine sucrose, chokoreti, caramel kana toffee pakati.
Pakati pezvimwe, chidzidzo chacho chakatungamirira kumhedziso inotevera: kushandiswa kwe sucrose kunogona kubatsira mukukura kwe caries. Ngozi inowedzerwa kana sucrose ikanyudzwa mune inonamira fomu, iyo inonamatira pamusoro pemazino.
Zvakazoitika kuti zvikafu zvine huwandu hwakanyanya hwe sucrose mune inonamira fomu zvinokonzeresa zvakanyanya kukuvadza mazino, pavanenge vachidyiwa sechikafu pakati pezvokudya zvikuru - kunyange kana kusangana kwe sucrose nechepamusoro pemazino kwaiva kupfupi. Caries inoitika nekuda kwekunyanyisa kudyiwa kwechikafu chakakwira mu sucrose inogona kudzivirirwa nekubvisa izvo zvinokuvadza zvekudya kubva mukudya.
Zvisinei, zvakaonekwawo kuti kune misiyano yemunhu mumwe nomumwe, uye mune dzimwe nguva, kuora kwezino kunoramba kuchiitika pasinei nekubviswa kweshuga yakanatswa kana kudziviswa kwakanyanya kwehuwandu hwehuga hwechisikigo uye makhahydrates.