I fed Diamond L/R for quite a while. It's a great food for the money. The only problem I had with it was our female was not getting the nutrition that she specifically needed out of it during field trial/hunt test season and hunting season.

I have switched to Nutro's Natural Choice products in the past two years. I like that the adult formulas have the glucosamine and chondrotin in the food and that my older dogs don't have to take another pill.

I have been very happy with it and have recommended it to several friends including the breeder of our youngest. She's seen great improvement in their older dogs on the Senior formula.

There's nothing wrong with Diamond L/R unless your dog can't tolerate it. It's a good food and has been used by breeders and competitors for many years. If your dog does well on it then go for it. If the dog runs out of gas on it then you need to look at the situation more closely.