The increasing prevalence of the obesity epidemic worldwide is a major threat to global health in terms of morbidity and mortality. Obesity is associated with a variety of health problems, including diabetes, cardiovascular disease, reproductive disorders, osteoarthritis, gallstones, nonalcoholic fatty liver disease, respiratory disease, and, according to studies, some types of cancer. . The problem of obesity and smoking can be followed for public health as the cause of cancer. Increased BMI has been shown to increase the risk of some types of cancer. , such as esophageal adenocarcinoma, melanoma, leukemia, multiple myeloma, non-Hodgkin's lymphoma and colon cancer. , thyroid, endometrium, kidney, gall bladder, rectum, etc. including breast and pancreatic cancers.