Globally, it is estimated that perhaps ~ 2 billion people are overweight or worse obese. Among these people, almost 25% are estimated to have Diabetes. Diabetes has a nasty way of sneaking up on you as it is symptomless. It then ravages your body causing cardiovascular diseases, kidney failure, etc. not to mention the pain of having to inject yourself with Insulin. New evidence is now linking people with Diabetes at risk of developing Cancer with a 10-year lag. This lag is an estimate of the time by when you will contract cancer, and you can obviously be at risk much before the ten-year-mark.
A high amount of insulin, high sugar levels, chronic inflammation, unregulated estrogen and damaged organs can apparently increase the risk of cancer. A study was conducted across 175 countries between 1980 and 2002. Over 18 types of cancers were studied. The data on cancer was then linked to incidence of a high BMI and obesity. In advanced countries, almost 40% of cancers could be connected to Diabetes. Globally, over 4% of cancers could be linked to the same disease. In Sub-Saharan countries, the population was showing an 88% jump in the diabetes-related incidence of cancer. Obviously, liver cancer and pancreatic cancers showed a high co-relation as the liver is one of the primary organs regulating your sugar levels. Liver damage often includes a fatty liver or even cirrhosis. Colon cancer was another type that showed high correlations. Research has also shown that the medicines that you take for diabetes can also result in cancer long term.
It is apparently difficult to find causality in large groups of people especially linking diseases. You do not need evidence or even science for evidence once you understand what being overweight and the likely contracting of Diabetes can do to your body. You want to fix your life before you get Diabetes.