PETS at Home has recalled several cat food products after some animals collapsed and started fitting.
The pet retailer said the three cats became “seriously unwell” after eating AVA dry cat food which had insufficient levels of thiamine (vitamin B1).
The affected cats collapsed and began twitching and fitting after eating the vet-approved product - and needed treatment from vets.
The brands are AVA Mature Cat Chicken (2kg), AVA Mature Cat Chicken (4kg), AVA Senior Cat Chicken 2kg, and AVA Adult Cat Neutered Indoor (1.5kg).
Owners are being told to return the products to stores for a refund.
A recall notice said that anyone whose pet becomes ill after eating the affected foods should seek immediate veterinary advice.
A statement on the Pets at Home website said: "We are aware of three cats which, sadly, became seriously unwell four to six weeks after switching to one of the affected products and required veterinary care.
"All three cats exhibited symptoms of sudden collapse, fitting, widespread twitching and general unsteadiness which are not the classic symptoms of thiamine deficiency."