I started Buster on Rayne kibble (in his case, it's the digestive one, but only cuz it's a turkey base, not cuz he's got a tricky tummy). Rayne uses a lot of non-traditional protein sources like kangaroo, which makes it good for dogs with food allergies. Since he's been on it, his coat has become sleek...no other word for it - he was all yeasty and stinky when I got him (they fed him kibbles n bits!), but not any more. A lot less poop too. Rayne is sold in the US, and I highly recommend it. http://www.raynenutrition.com/Default.asp (It ain't particularly cheap, but worth it.) Heidi's having blood work this week to see if her liver's gotten any better, and the low protein food I've got her on has been discontinued. If at all possible, I'm going to switch her to it as well.