Are other pellets typically that high in protein? don't seeds have protein too? I'm not saying he is wrong or anything- just curious.
My understanding is that it’s because seed blends are typically higher in fat and carbohydrates and lower in protein. Making them easier to handle for a damaged renal system.
A poorly functional kidney cannot process the nitrogenous waste from protein like a normal, healthy kidney can. I don’t think pellets cause kidney issues or are an issue in a healthy bird. But in one that has significant kidney disease I think the immediate diet change is to switch to seeds until the kidney is functioning well again. The vet has only told to switch our sick girl to seeds, not our other 3 conures.
The other brands range from 11% to 17% in protein. I guess the vet feels even 11% is too high at this stage?