Kashi shine abu mai karfi ko taushi na sauran abinci wadanda jiki bazai iya narkarwa ba. Amma ƙwayoyin halitta dake cikin babban hanji suke narkar dasu dan amfaninsu. Ana fitar da kashi ne ta mafitar tsuliya ayayin da ake yin bahaya. Ana amfani da Kashi amatsayin taki ko soil conditioner a harkokin noma. Kuma ana ƙona ta yayi amfani dashi amatsayin fuel source ko amatsayin construction material. Wasu amfanin kashi amatsayin magani ansamu ayanzu. A bangaren kashin mutum, ana amfani dashi a fecal transplants ko fecal bacteriotherapy ayanzu. Fitsari da kashi dukkansu biyu ana kiransu da excreta. Wannan Muƙalar guntuwa ce: tana buƙatar a inganta ta, kuna iya gyara ta. Tortora, Gerard J.; Anagnostakos, Nicholas P. (1987). Principles of anatomy and physiology (Fifth ed.). New York: Harper & Row, Publishers. p. 624. ISBN 978-0-06-350729-6. Diem, K.; Lentner, C. (1970). "Faeces". in: Scientific Tables (Seventh ed.). Basle, Switzerland: CIBA-GEIGY Ltd. pp. 657–660.