Overall I found it a set of fairly decent articles about a serious problem. It is probably caused by a combination of factors. The author the potential problems of contaminants. We are all exposed to lots of contaminant that our ancestors were never exposed to. We know that several of these contaminants can cause adverse effects. Both the exposure to some classes of contaminants and the incidence of obesity have increased in recent times. Yes, correlation does not imply causation, but it seems to be a very reasonable hypothesis to research. Unfortunately this will be very difficult because doing dietary research is already very difficult, and feeding people with contaminants does not seem to be very ethical.
