Hill's Prescription Diet z/d Low Fat is a veterinary-grade canned wet food for dogs with food sensitivities or adverse food reactions. Available on veterinary prescription, it targets dogs whose skin, coat, ear, or digestive symptoms are triggered by common dietary proteins — where standard hypoallergenic options haven't provided relief.

The formula uses hydrolysed soy protein as its primary protein source — proteins broken into fragments small enough to be less likely to provoke an immune response. Hill's ActivBiome+ technology supports the skin's microbiome as an additional layer of protection against food-triggered reactions. The low-fat profile suits dogs that also need digestive support alongside their sensitivity management.

For dogs whose sensitivities haven't responded to over-the-counter hypoallergenic options, z/d represents the clinical end of the spectrum. The hydrolysed single-protein recipe reduces dietary triggers while maintaining complete and balanced nutrition — and the low-fat formulation makes it suitable for dogs with concurrent digestive sensitivities.