small dog breed , does kibble size matters ?

[Frenchy]

Yes , does size really matters ?


I have a coworker that has 2 Maltese dogs , he's been feeding Hill's Prescription diet T/D (small bites) or course , buying his food at the vet , he thought this was good food. He brought me the ingredients label : rice,corn,chicken by-product .... so I explained to him what those ingredients were and he's asked me to find something better ... do these smaller dogs need smaller size kibble ? I don't know what to suggest to him , there's so many better brands but would have to be available in his area (I think Chambly , Québec)

help !