The relationship between diet and the development of particular cancers may partly explain differences in cancer incidence in different countries. For example, gastric cancer is more common in Japan due to the frequency of high-salt diets and colon cancer is more common in the United States due to the increased intake of processed and red meats.[43] Immigrant communities tend to develop the cancer risk profile of their new country, often within one to two generations, suggesting a substantial link between diet and cancer.[44][45]