Catmor isn't toxic, but it may kill your male cat.

Contrary to what is written elsewhere here, Catmor isn't clinically speaking toxic. But it's a cheap poor quality cat food, which is unhealthy for your cat, and potentially fatal to your male cat. Like all cheap cat food, Catmor contains high levels of plant based protein (mainly soy), rather than more costly meat or fish meal to raise it the protein content. With this comes high levels of magnesium, which result in kidney crystals. Hence, vets routinely see many older male cats with blocked urinary tracts (typically urethra) which can be fatal - see other reviews here. Physiologically female cats seldom suffer from such urinary-******* tract blockages, but can suffer from cystitis. So, consult your veterinarian if you have a male cat.

Don't believe this review, because vets have a vested interest in selling premium cat food? Well, many vets will endorse the better quality (higher priced) premium supermarket brands. However, with the cost of vet visits, an intrusive operation to insert catheters etc, buying the cat food from your vet shop (any brand, it doesn't have to be the fancy imported brands) will probably save you money in the long term.