There are a couple of issues drawing too much from this study. 1. They haven't found any mechanistic evidence to support this. 2. All of these populations had

There are a couple of issues drawing too much from this study. 1. They haven't found any mechanistic evidence to support this. 2. All of these populations had access to manufactured food. (Either human or pet food) 3. This is really only one study, not really a field of research. IT seems like the theory manufactured food has gotten tasty since the 80's would also explain this data.