Great article, thank you!
Would it not be more likely that instead of obesity contributing to cancer, there is one cause for both? Or multiple causes of course. Which can be assumed to be linked with all the changes in human lifestyle in the past 100 years (when both have grown in incidence)
Liver cancer link I think is particularly relevant. Fructose intake is generally high with obese (from sugar). And fructose harms the liver and leads to non alcoholic fatty liver disease which in turn leads to liver cancer. Very simplistic put, of course. What do you think?