There is a voluntary recall of three varieties of Pedigree weight management canned dog food products due to a potential choking risk.

Cans of the product may contain small pieces of blue plastic, which according to Mars Petcare US, broke off a conveyor belt during the production process.

“Besides the risk of choking, if swallowed, the foreign body could become lodged in the dog’s digestive track and have to be removed surgically,” said Dr. Neil Shaw, chief medical officer of BluePearl Veterinary Partners. “If you notice abnormal behavior such as vomiting, or a lack of defecation, take the dog to your veterinarian as soon as possible.”

Only cans of Pedigree weight management canned dog food varieties with the following lot codes printed on the end of the can that begin with 209, 210, 211 or 212 are included in the recall of products distributed to retail customers in the United States with a Best Before date that falls between Feb. 24, 2014, and March 23, 2014.

According to Mars, no other Pedigree products are affected.