... and the risk goes up with each ounce. Yikes!
Trending on Bing today was a multinational study done on the association of daily soda indulgences and diabetes.
The study was done by a large group of researchers led by D. Romaguera of the Imperial College London, and was published April 24, 2013 in the journal Diabetologia. You can download a .zip file of the abstract and graphics from the Diabetologia site.
An "association" it not as powerful a scientific word as "cause". So you can't come out and say that soda causes diabetes based on this study alone.
But you can build a pretty strong case that it's a good bet. To quote from the study:
No white carbs! Or at least, no white carbs for nutrition you depend on. Most white carbohydrates, whether sweet or salty, are all dessert. But don't despair - that leaves so many colorful foods you can now fill your dinner plate with!