Ten treats of a single ingredient in a 25 g bag. They are not cooked: they are frozen and the water is removed under vacuum, so they keep the smell of raw food, which is what a cat judges before coming closer. Use them as a treat or crumbled over the ration.
An adult cat needs about a quarter of the calories of a medium dog.
That is why portions here are much smaller than you would see with a dog, and why the four egg and dairy references should be given sparingly: lactose tolerance in the adult cat is limited.
Six single animal ingredient references, from the smallest to the whole piece with bone.

100% chicken
Diced chicken topping
Freeze-dried chicken cubes.

100% chicken
Pure chicken topping
Thin sheets of freeze-dried chicken, ready to crumble over food.

100% chicken neck
Chicken necks
Whole freeze-dried chicken neck, with the bone.

100% salmon
Fresh salmon
Freeze-dried salmon cubes.

100% herring
Wild herring
Whole wild-caught herring, freeze-dried.

100% rabbit
Rabbit hearts
Freeze-dried rabbit meat in heart shapes.
Four milder-tasting references. With cats, keep lactose in mind.

100% egg yolk
Egg yolk
Freeze-dried egg yolk.

100% cheese
Cheese cubes
Freeze-dried cheese cubes.

100% yoghurt
Yoghurt mix
Freeze-dried yoghurt bites in a mix of flavours.

100% goat’s milk
Goat’s milk sticks
Freeze-dried goat’s milk sticks.
Freeze-drying is what allows both things at once.
The food is frozen, then its water is removed under vacuum, with the ice turning directly into vapour without becoming liquid. There is no cooking at any stage.
This preserves the shape, smell and much of the nutritional value of the raw ingredient, while keeping it stable at room temperature without preservatives.
Yes. A little lukewarm water restores some of the original texture and releases more aroma, which can suit older animals or those with fewer teeth.
Once rehydrated, serve immediately and do not leave it in the bowl.
These are complementary snacks. As a general guide, treats should provide no more than 10% of daily calories. Since this is a dehydrated product, each gram is concentrated: it is light but nutrient-dense.
Cats need much less per day than dogs, so portions must be very small.
Yes, the entire range is suitable for both species. Portion size varies, as does suitability for some recipes: milk-based products should be given more carefully to cats.
Zen is available through specialist stores, veterinary clinics and authorised distributors. Tell us your town and we will direct you to your nearest stockist.