Zakudya zolimbitsa thupi zozikidwa pa kuletsa zakudya zimakhala zoipitsitsa kuposa kukhala bwino pakapita nthawi. Amakupangitsani kuti muchepetse thupi nthawi yomweyo koma kenako kumabwera zotsatira zake. Kulemera kwake kumakhala kwakukulu kuposa kale ndipo thupi laphunzira kusunga, motero kuoneka kwa ziphuphu zosaoneka bwino pamwamba pa ntchafu ndi m'matako.