The only thing i know of Iams is a friend who goes to the Supreme Cat Shows here in the UK every year said "Uncaged" who also have a stand at the show have videos playing of undercover work they did at Iams labs, which apparantly was quite shocking
When i rang Iams helpline to ask about their testing and if "Ungaged" were lying with the leaflets they were handing out along with the video footage they were showing, then surely they could have them for liable, especially when they were doing this only a couple of stands down from the Iams stand?!.
Their reply to me was "It's freedom of speech!"
Needless to say after hearing them say that and not defend themselves i took Rosie and Sophie off Iams!.