Ko ngā Tāpiritenga Kai mō TCP 18 he whai hou ki te kai mō ngā kararehe, i hangaia kia whakanui ake i te tipu, hauora, me te uara o ngā kararehe. Ko ēnei tāpiritenga kei roto ngā itiwhi, minaral, me ngā parahaki e āwhina ana i te pūnaha rerehua o ngā kararehe kia pai. Mena kātahi koe e whakauru ai i TCP 18 ki tō punaha kai, ka pai ake te huri kai, ka piki ake te tāponga, me te whakapai ake i te urupare o te pūkenga, nā reira ka whanaketia te mahi pāmu e tika ana.