Mixer & Biscuit

On its own, most mixer biscuit isn't nutritionally complete the way a standard dry food is — it's designed to be combined with a protein source like wet or raw food, which supplies the rest of what a dog needs. Check the packaging to see whether a particular mixer is meant as an addition or can be fed alone.

The texture change matters for some dogs as much as the nutrition does. A dog fed purely wet or raw food can end up with looser stools than one getting some dry bulk in their diet, and mixer biscuit is one straightforward way to add that back in without switching foods entirely.

There's no single ratio that suits every dog, because it depends on the dog's size, activity level and what else they're eating — start with a small amount stirred through an existing meal and adjust based on how your dog does, rather than following a fixed formula. Your vet can help work out a sensible starting point if you're unsure.

Introduce it gradually rather than all at once, the way you would with any new addition to an established diet, and watch how your dog's stools respond over the first week or two.

Owners feeding a raw diet are probably the most common users, since raw meat alone doesn't carry the same fibre and bulk that a dry kibble does, and mixer biscuit is a simple way to bring that back without buying a separate complete food.

It also suits owners who feed wet food as the main meal but want to save a little money by bulking it out, or who simply prefer the texture a bit of crunch adds to an otherwise soft meal.