Hi Cathy-
I do not have dogs with this issue, but I did have a cat that had a urinary blockage a few years back. They were Struvite crystals though. They are much more common than silica. Scary stuff. You definitely want to stop them from forming. As far as ratings go on this site, I wouldn’t worry about them. It’s tough to rate food by the ingredient label, especially for a dog with a medical condition.
Listen to your vet! ProPlan is a great food. Purina is a large company that has been around for a long time. They do a lot of ongoing research, they employ full time board certified veterinary nutritionists, and they own their own manufacturing plant.
I have been following the “DCM thing”. So far, there have been no dogs diagnosed with it that have been fed Purina PP. Their food contains all the amino acids that enable dogs to synthesize their own taurine in addition to the taurine that is in the food. There are also no known ingredients that will block it from being absorbed. I recently switched back to Purina and my dogs are doing great. We all need to listen to our vets more. They know more about nutrition than we give them credit for. Good luck to you.
