Ever since the recent turmoil about deadly dog treats from China we have switched to low fat hotdog peices or a few treats made in the USA. We're noticing a serious change for the better. Our girl is growing old and was showing it. Slowing down, reluctant to walk far and in obvious pain. In the last two months she has regained muscle mass in her haunches, is much more limber and just looks years younger! So have any other members noticed the kind of changes that we are seeing .