Does this answer the question: “Which came first? The chicken or the egg?”
I don’t think so. There is certainly a lot of plastic around. Some of it serves a good purpose although I wonder about recycling vs landfills for all the disposable and obsolete junk that manufacturers pump out.
What if the obese girls just eat a lot of calories in foods that are packaged in plastic? Heating foods in plastic containers? Drinking water in plastic bottles? Would that account for the higher BPA levels and obesity? They might be independent – or not since BPA is a hormone disruptor so to speak.
In the meantime be ever vigilant regarding what you eat, how it processed, and where it comes from…you never know!