Rice and potatoes is not a balanced diet for a cat. That's for sure!

Vegan dog and cat food --- I'm not sure about them. I don't think we really know all that much about dog and cat nutrition. I do think it's safer for doggies to be vegan since they are omnivores. I have heard of healthy vegan kitties but that does not mean it would be right for every cat.

It would help the matter if animal nutrition was more stressed in the veterinary schools!!!