Tushen ƙarfe na simintin gyare-gyare, murfin ƙasa don man kayan lambu, lafiyar muhalli, tare da tasirin rashin mannewa ta jiki, tukunyar ƙarfe na ƙarfe yana ƙunshe da abubuwan gano abubuwan da jikin ɗan adam ke buƙata, mai dorewa, mai zafi daidai lokacin dafa abinci, tasirin adana zafi yana da kyau sosai.