Stay away from cheap dog foods made with poor quality ingredients such as meat by-products, cereals, and a bewildering list of ingredients. These foods are a challenge to digest. Apart from that, these foods supply a staggering amount of metabolic waste products, which the kidney has to process and excrete.
Dogs with renal problems should also avoid foods high in sodium and phosphorus, such as jerkies, dairy, rawhide treats, and any food containing wheat gluten. When choosing dry dog food, make sure to feed your dog low-sodium dog food.