by Marion Nestle
Jan 28 2009

More on Bisphenol A

How serious a problem is Bisphenol A, the hormone-like substance that leaches from some plastic water bottles?  The answer: how would we know?  According to investigative reporter, David Case, most of the studies of bisphenol A toxicity are sponsored by corporations that spin the results.  Take a look at his most interesting January 14 report, The real story behind bisphenol A.

In theory, whoever is paying for a study should not matter.  In practice, the sponsor matters a lot.  It’s not that scientific investigators are corrupt; most aren’t.  But sponsorship – perhaps unconsciously – influences the design of studies as well as their interpretation.   According to Case, the bisphenol A studies are a good example of this phenomenon.  You can find other examples filed under Sponsorship.