Hi A W, I just looked at the ingredients to Purina HA & the first ingredient is STARCH…it looks like the same ingredients that Hills use for their Z/D Ultra…..in the end I did an elimination diet with my boy & I found he can’t eat Potatoes, gave him a rash all over chest & diarrhoea, Sweet Potatoes made his ears itch & he wouldn’t stop shaking his head, just after 2 days on sweet potatoes, I stopped the boiled sweet potatoes & he stopped shaking his head & scratching his ears, within 2 days, peas gave him gas & sloppy poos, wheat, barley, rye & oats made him itch & rub his back up & down the walls, so now I what foods to avoid & I stopped any starchy foods…
An elimination diet is best, see how he does on the Purina HA but if he’s still has ear infection, try an elimination diet… here’s a link to Dr Karen Becker about yeasty skin & ears, about 5 mins into her video she talks about potatoes & sweet potatoes & how to stop your dogs ear infections with a sugar free diet….. starch=sugar
http://www.youtube.com/watch?v=gl_X1I1GJ1Q
