Royal Canin Veterinary Hypoallergenic is a prescription dry food for adult cats with suspected food allergies or intolerances. It's designed to be fed as a complete diet during an elimination trial and long-term for cats whose skin or digestive symptoms trace back to what's in the bowl. Requires veterinary authorisation before feeding.

The formula is built around hydrolysed protein — proteins broken down into fragments small enough that the immune system is far less likely to react to them. That's paired with a limited, carefully selected ingredient list to reduce further trigger risk. Added support for skin barrier function and digestive health targets the two areas where adverse food reactions usually show up: itchy irritated coats and unsettled stomachs.

Owners turn to Hypoallergenic when their vet has ruled out other causes and food is the remaining suspect. It's a diagnostic tool as much as a diet, and cats often stay on it long-term once the trial confirms sensitivity. The 2.5kg suits single-cat households; the 4.5kg is better value for multi-cat or longer feeding periods.