Ofufuzawo ku yunivesite ya United States adanenanso kuti maswiti amakhala osakanikirana ndi shuga, ndipo zolowe m'malo mwake sizili zonse zotetezeka chifukwa cha mawonekedwe athu. Amadzinenera kuti: M'malo mopereka mphamvu, thupi, m'malo mwake, zimafunikira zokoma zambiri, zomwe zimakhudzanso chiwerengerocho.
Monga lamulo, zinthu zomwe zimakhala ndi shuga pazikhalidwe zoyera zimaperekedwa ndi odwala omwe ali ndi matenda ashuga. Komabe, posachedwa mawu olakwika atulukira: "Ngati mungagule zakudya zomwe mumakonda pa shuga, kulemera sikukula." Ofufuzawo amalengeza kuti: Musatenge maswiti a mtundu uwu amene akufuna kunenepa. Muvi pa masikelo ayamba kukula mwachangu.
Kafukufuku adachitika: Amuna oposa makumi awiri ndi akazi oyeserera azaka zosiyanasiyana adalandira chakumwa ndi maswiti onse pa shuga kapena wamba. Kenako adawonetsa zithunzi zokhala ndi zakudya. Zotsatira zake - anthu omwe amagwiritsa ntchito maswiti pa froctose anali ndi njala.
Asayansi anazindikira kuti atatha kugwiritsa ntchito maswiti amtunduwu mu ubongo wa munthu, ntchito imakula. Zomwe zimatsogolera ku mtima wofuna kudya chakudya.