Innocently feeding your dog a hot cross bun could be deadly, according to experts.

Pet owners have been handed the sinister warning about the favourite holiday treat ahead of Easter weekend.

The fatal effect of raisins and sultanas found in the popular snack are not thought to be as highly publicised as the risk posed by chocolate.

Animal nutritionist of pet food brand Webbox Natural Jennifer Dean said: "There have been some good advice campaigns in recent years about the risks posed by chocolate to dogs.

"But other toxic foodstuffs are potentially less well known, and hot cross buns, in particular, may be extremely dangerous to pets.

"Raisins and sultanas found in the snacks can cause kidney failure in dogs, and cats.

"The precise reasons why are still not clear, but there's a toxic agent in the fruit that can also lead to diarrhoea, vomiting and extreme lethargy."

Dean also warned in extreme cases dogs could even suffer the likes of hallucinations and seizures if they get their paws on the traditional holiday treat.

She continued: "Some hot cross buns will also contain lots of nutmeg - unfortunately that spice contains a compound called myristicin which can poison dogs if consumed in large amounts.

Vets Now, the leading provider of emergency care for pets, said that after Christmas, Easter is the busiest time of year for emergency services for animals.

Chocolate contains theobromine, which if eaten by dogs can seriously affect the heart, central nervous systems and kidneys.

Symptoms of chocolate poisoning can last up to 24 hours and can include vomiting, diarrhoea, breathlessness and even seizures.

Vets Now Chairman, Richard Dixon, said: "Easter is a great time to indulge with our families and for many of us that include our pets.

"Whilst it is a time for fun, foods we enjoy present a real danger to our pets.

"It's important to be aware of what they are eating at all times so that we can ensure they come to no harm.

"Do not share your chocolate eggs or hot cross buns with your dog or another pet - there are lots of pet-friendly alternatives they can enjoy this Easter."