I have no idea whether that is the case or not, although it does sound plausible but I do think that we should be very careful about what we eat and what has happened to the food before it gets to us. I am currently struggling with meat from corn-fed animals, as I am allergic to corn and trying to work out the history of most meat is a nightmare.
I wish that organic farming was much more popular/cost effective, so that it would become more widespread.
