Hill's Prescription Diet k/d + Mobility is a dual-purpose dry dog food for older dogs managing both chronic kidney disease and joint stiffness — a common combination in senior dogs. The formula delivers full kidney support alongside clinically effective joint nutrition in one bowl.

Like standard k/d, phosphorus is reduced to protect kidney function and high-quality protein is controlled to limit metabolic waste. On top of that, high levels of EPA from fish oil and added glucosamine support joint cartilage and reduce the inflammation that drives osteoarthritis. The same antioxidants and B-vitamins as k/d cover the renal-disease vitamin demands.

Vets reach for k/d + Mobility when an older dog with kidney disease also struggles to rise from sleep or climb stairs. One diet tackles both — easier for owners and far easier for picky senior dogs who refuse food rotations.