MORE than a third of small dogs have been treated for human-like health problems like obesity, experts revealed yesterday.
The epidemic of illness in small dogs has been nicknamed the "Paris Hilton Effect" after the current celebrity craze for tiny breeds - which are often spoilt by their owners.
Vets warned that owners are killing their miniature breeds with kindness by giving them chocolate, biscuits, fruit and other snacks designed for people - but which can harm or even kill animals.
Sarah Whitehead, a dog psychologist, said a survey of owners found that 79 per cent of small dog owners admit to feeding their pet human food, possibly because they think of the animal as a small child.
She added: "Although we all like to spoil our dogs, it is essential that you stick to a good quality dog food prepared with small dogs in mind."
Professionals also warned that tiny clothes and other accessories can also be harmful - as well as looking ridiculous - because they restrict movement or can lead to dogs overheating.
Small breeds - known as "teacup pups" in the United States - have reportedly been seen with stars like Britney Spears, Jessica Simpson, singer Kelly Rowland and actresses Kate Hudson and Scarlett Johansson.
But Hilton's chihuahua, Tinkerbell, is probably the most famous of the canine fashion accessories.
The celebrity craze for dogs like pomeranians has sparked a copycat trend towards similar pets in this country.
Breeders are reporting a massive rise in the sale of miniature breeds such as pomeranians, chihuahuas and Yorkshire terriers.
But, according to pet care company Butcher's Choice, which carried out the survey, 35 per cent of small dogs have suffered diet problems more usually associated with humans as a result of being treated like a child.
These include high cholesterol levels, digestive problems, bad joints and even depression, often as a result of being fed treats, including some fruit which owners think is healthy.
Chocolate made for human consumption is the most common cause of canine illness. It contains theobromine, which can affect the heart and nervous system of a dog to the extent that it can be fatal.
Onions, raisins, grapes, milk and some nuts, as well as coffee grounds, tea, alcohol and spicy food are also dangerous.
Butcher's Choice brand manager Alison Cockcroft said: "This highlights how important it is for small dog owners to appreciate that they should treat their pet like a pet. Many well-meant gestures actually cause our pets more harm than good.
