Dog advent calendars: which ones are safe and worth buying

A dog advent calendar swaps chocolate for dog treats, dental chews or toys behind 24 doors, so the dog can join the countdown while the family’s advent calendars stay out of reach. Whether one is safe comes down to three checks on the pack: the minimum age, the size of the treats and how the daily door fits into the dog’s food allowance. Whether it is worth buying depends on your dog’s diet, and for some dogs a calendar you fill yourself is the better choice.

Are dog advent calendars safe?

Calendars made for dogs are safe when the treats suit the dog. They are sold as complementary pet food, which the trade body UK Pet Food describes as food to be paired with other food, a category that includes treats. The real danger is the family’s own calendar: chocolate contains theobromine, which dogs struggle to break down, and PDSA vets warn that the darker the chocolate, the more toxic it is likely to be.

What is inside a dog advent calendar

Dog advent calendars come in six main types:

• Meaty treats: small pieces of chicken, duck, pork or fish, sometimes two or three per door.
• Biscuits: baked biscuits, often bone-shaped, in sizes that do not always suit small dogs.
• Dog-safe “chocolate”: chocolate-style treats made without cocoa, or carob treats.
• Dental chews: one dental stick a day, sometimes individually wrapped.
• Toys: some calendars mix toys with treats.
• Fill-your-own: refillable pockets, a cardboard calendar with 24 spaces or a snuffle mat, stocked with your dog’s usual treats.

Dog advent calendar ages: check the pack before a puppy gets one

Minimum ages differ from one calendar to the next, and not every listing gives one. This is what the makers’ own pages said in October 2026:

If a pack gives no minimum age, ask the maker before a puppy has any. Size matters as much as age: a biscuit cut for a large dog can be too big for a small one, so break big pieces in half and count both halves as that day’s treat. Editions change every year, so read the 2026 pack rather than relying on last year’s details.

How many advent calendar treats can a dog have a day?

PDSA’s guidance is that treats should not take up more than 10% of a dog’s daily food allowance, with the usual food reduced by the same amount. The calendar treat counts towards that 10%, alongside training treats and anything from the Christmas table.

1. Read the feeding guide on the calendar: every pet food label has to give directions for use.
2. Count what is behind each door, as some calendars put two or three pieces in a window.
3. Take the same amount off the dog’s dinner that day.
4. Skip other treats on days when the door holds a large chew.

• 10%maximum share of daily food from treats (PDSA)
• 24doors, from 1 to 24 December
• 12 weekslowest minimum age in the table above

How to read the label on a dog advent calendar

UK pet food labels follow naming rules summarised by UK Pet Food. Ingredients appear in descending order of weight under “Composition”, and any ingredient the pack draws attention to in words or pictures must show its percentage.

So a calendar of “chicken treats” holds at least 26% chicken, while “with chicken” can mean as little as 4%. For a dog with a food allergy, the full composition list matters more than the name on the front.

Is a dog advent calendar worth buying?

When a ready-made calendar makes sense

A ready-made calendar saves you sorting 24 portions and gives the dog something it does not get the rest of the year. Look at the number of treats per door and a protein your dog already tolerates. Denzel’s Giant Advent Calendar, for example, holds 24 mini bags of treats in six festive recipes, made in the UK and Ireland, and its product page lists each flavour. Our advent calendars collection lists Pooch & Mutt’s meaty treat calendar for dogs next to the family ones.

When a fill-your-own calendar is better

For a dog with allergies, a sensitive stomach or a strict diet, a reusable calendar is the safer buy: refillable pockets, or a snuffle mat where you hide the treat, filled with food the dog already eats. You buy it once and refill it every December. Our guide to DIY advent calendars covers the homemade options.

Cat advent calendars

Cats get calendars too, with treats or toys behind the doors; Lily’s Kitchen, for example, sells a grain-free advent calendar for cats. The rules match the dog ones: PDSA advises that treats stay under 10% of a cat’s daily food allowance, with the usual food cut by the same amount.

Theobromine is toxic to cats as well as dogs, so the chocolate calendars need to be out of reach of both. PDSA also suggests non-food rewards for cats, such as extra playtime, a new toy or a groom, which makes a toy calendar a sensible choice for a cat that needs to lose weight.

How to use a dog advent calendar

• Start on 1 December, a Tuesday in 2026, and open one door a day up to Thursday 24 December.
• Open it at a fixed time, after a walk or as a reward for a trick, so the treat has a purpose.
• Store it on a high shelf or in a cupboard between openings: a dog can smell treats through cardboard.
• With two dogs, choose a calendar with two treats per door or buy one each.
• Keep human sweets away from dogs too: some sugar-free sweets and gums contain xylitol, which vets at Joii Pet Care say can cause a drop in blood sugar within 15 to 30 minutes.
• Hang the family’s chocolate calendars high up; our comparison of the best chocolate advent calendars also covers where to store them.