I have feed store bought chicken in the past and have had no bad effect. I know there is a lack of nutrition and has never been the main food source. But I have used it in hard times and it has even helped snakes to start eating. I had a 14 foot Burmese python that i feed 1 hole chicken a month for a year when I was younger and she even breed for me. Not saying it's good but I don't think its bad, what do you guys think and has anyone done it.I read about it in a snake book I had 15 years ago