I looked at that mix yesterday while ordering a few things for Polly from ratrations (she's the ham we have with suspected kidney failure). In the end I decided against as rats have different nutritional requirements and I'm not completely sure if that mix is designed to protect against kidney problems or to treat them. I figured when it comes down to it I'm happier trusting Hamtastic and making Pollys new diet myself, especially when Polly already seems to be improving on it. I'm starting to understand the mix and why we're doing things as we are and thats reasuring too
(Its not just HC I've ended up learning from about this)