Yes. Obesity has now been linked with even more cancers. From 5 to 13 now iirc. It used to be thought that sugar was the 'fuel', but recent hypotheses now increasingly point to fat... http://www.sciencealert.com/scientists-have-found-a-way-to-stop-cancer-spreading-in-mice and http://mag.uchicago.edu/science-medicine/fat-cells-fuel-ovarian-cancer and there's more studies out there saying roughly the same thing.