Hi Rosie, with most brands the formulas are very similar, and by that I mean an emphasis more on cheaper ingredients rather than ingredients suitable for your cat.

Meat and fish ingredients are expensive, so I expect with ACANA formulas the price variations are very much a reflection of the differing costs of meat/fish ingredients.

Hi Lee, there’s an excellent white paper on this here which will put your mind at ease, but it’s a perfect example of why feeding a variety of foods is a good idea. We consume all manner of toxins ourselves, but because our diet is varied we’re very rarely affected. Pets on the other hand tend to be fed one brand, usually one brand of kibble, all the time – this puts complete reliance in the safety of that product, continuously.

Apologies, good spot! I’ve now added a review score!