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Pet owners are being urged to be vigilant this Christmas, as University of Liverpool researchers warn of a “significant peak” in the risk of chocolate poisoning in dogs over the festive period.
Most people know that chocolate can be poisonous to dogs but may not know why. The toxic ingredient is a caffeine-like stimulant called theobromine that can lead to an upset stomach, a racing heartbeat, dehydration, seizures and in the most severe cases death.
In a new study published in the Vet Record, researchers from the University’s Small Animal Veterinary Surveillance Network (SAVSNET) have used electronic health records from UK veterinary practices to analyse cases of chocolate ingestion in dogs.
The findings reveal significant seasonal peaks of chocolate ingestion cases across the year, most notably at Christmas and to a lesser extent at Easter – as chocolate becomes more accessible within the home.
In most cases the amount of chocolate consumed was quite small, with common festive culprits including selection boxes, chocolate cake, liqueurs, chocolate Santas and advent calendars.
Veterinary researcher Dr P-J Noble who led the study commented: “Dogs love a chocolate treat and at Christmas there are plenty about. Sadly dogs can’t eat chocolate safely so many of them end up making an unplanned visit to the vet, which can disrupt the celebrations.
“People should keep festive chocolates away from pets. If chocolate is consumed, owners should talk to their vet as soon as possible, and ideally be prepared to quantify the amount and type of chocolate consumed. Information on the chocolate packaging may help the vet take the best action. While many cases of chocolate-eating are not at toxic levels, where they are, it is better to see the vet quickly.”
The research, which analysed 386 cases of chocolate ingestion in dogs from 229 UK veterinary practices between 2013 and 2017, also revealed some differences in the seasonal pattern of UK cases compared to other countries. Peaks in similar cases around Valentine’s Day and Halloween that have previously been reported in the USA and Germany were not found in the UK, which the researchers suggest could be due to different festival priorities.
The study also found that chocolate ingestion was significantly less common in older dogs and that no specific breed is more at risk than others.
Dr Noble added: “Big data is allowing us to perform wide scale studies of issues like chocolate exposure. This will help us to understand the influence of age, breed, season and geography on a wide range of different problems.”
SAVSNET is a collaboration between University of Liverpool and the British Small Animal Veterinary Association (BSAVA), and is currently funded by the Biotechnology and Biological Sciences Research Council (BBSRC). For more information about SAVSNET please visit https://www.liverpool.ac.uk/savsnet
The study ‘Heightened risk of canine chocolate exposure at Christmas and Easter’ is published in the Vet Record [DOI:10.1136/vr.104762]
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