Swapped from Sanabelle
My guys got fed Sanabelle since birth (2 years) though one of them went recently and got bloods taken at vets, vet said protein levels were just fine from him and that was on being fed just Sanabelle.
Recently just fancied a change for them, with this Concept for Life food I gave them a bit to try on its own and they chomped it. There was no need to mix old +new food/transition etc.
They scoff this stuff they seem to love it so I'm going to change to this.