thank youMore than likely because those are the only brands that have prescription cat food, IMO. Sales reps routinely visit vets and tout their foods (and meds) as the most appropriate for certain health conditions. I doubt the vets are asking to have sales reps from other brands come in and talk to them about other foods that can be bought OTC. And just think of the gazillion options when it comes to OTC cat food.
This is an interesting article I found on the subject of nutrition in general as it relates to vets. It is only one person's perspective, but there is probably some truth in it anyway.
The Biggest Myths about Vets and Nutrition (drandyroark.com)
exactly, thats why im not sure why they recommend those brands i mentionedSomething to keep in mind, on the flip side so to speak, is that there are more and more nonprescription cat food manufacturers that are realizing cat owners are becoming more educated and demanding. So for example, Weruva has cat food varieties that contain low phosphorus (better for cats with kidney disease) and low iodine (necessary for cats with Hyper-thyroidism) plus a line that is super low phosphorus. Additionally, they've eliminated carrageenan.
Evangers and Dave's have new varieties that are low phosphorus.
The OP wasn't talking about prescription food.