Interesting observation, seeing as only the rich should be able to afford being fat. Almost as though there is a powerful tax payer funded group funding these fats... Science tells us when we feed a rat only sugar, it is fine. When we feed a rat only fat, it is fine. But should we mix the two, the rat will eat uncontrollably until death. We fail to make the connection with humans, but observe our diet: cake, sweetened fatty meats, doughnuts, deep fried fat, ice cream. All it takes is a minor imbalance of in/out calories, and the surplus will quickly lead to fashion modelling, "health" advocacy and instagram influencing.