Cancer is one of the 1ea<ling cause="" of="" death="" and="" is="" a="" major="" public="" health="" problem="" all="" over="" the="" world.="" epidemiological="" studies="" have="" led="" to="" concept="" that="" environmental="" factors="" may="" be="" important="" in="" carcinogenesis.="" diet="" nutrition="" are="" receiving="" increased="" attention="" relation="" 'to="" carcinogenesis="" research="" efforts="" this="" field="" expending="" from="" day="" day. ="" although="" development="" certain="" types="" neoplasms="" repressed="" by="" specific="" dietary="" deficiencies="" other="" actually="" augmented="" such="" deficiencies.="" fact.="" viewed="" as="" modifiers,="" rather="" than="" initiators="" ,of="" tumorigenesis.="" caloric="" intake,="" type="" amount="" fat,="" proteine,="" amino="" acids,="" vitamins,="" minerals,="" fibers="" constituents="" been="" studied="" regard="" their="" influence="" on="" neoplasms. Studies conducted to date indicate that the modifying effect of diet and nutrition may be exerted through specific effects on intestinal bacteria, endocrine system, immunological system, cell proliferations and the rate of carcinogen transfer throughout the body.