When Ordinary Proteins Are the Problem — HA Has the Answer
Food allergies in cats are almost always a reaction to the proteins in their diet — specifically, whole intact proteins that the immune system has learned to attack. Purina Pro Plan Veterinary Diet HA (Hydrolyzed) for cats solves this by starting with a single protein source (soy) and breaking it down into pieces too small for the immune system to recognise.
- Hydrolyzed soy protein — reduced to molecular weights that bypass most food allergy immune responses
- Single carbohydrate source for complete ingredient control during elimination trials
- Meets complete and balanced nutritional standards for long-term feeding
- Prescription required — for use under veterinary supervision
- Available in dry formulas; transition gradually over 7–10 days
Note: For an elimination diet trial to be diagnostic, HA must be the only food your cat receives for 8–12 weeks — including treats, table scraps, and flavoured medications.