A class action lawsuit is being filed against Hill's Pet Nutrition, Inc. for selling dog food containing excessive and dangerous amounts of vitamin D, according to Schubert Jonckheer & Kolbe LLP, the law firm that filed the lawsuit. 

Hill's manufactures and sells dog food under Hill's Prescription Diet and Hill's Science Diet labels. The company recalled certain of its canned dog food, which contained excessive and dangerous amounts of vitamin D in January. While vitamin D is an essential nutrient for dogs, ingestion of elevated levels can lead to potential health issues depending on the level of vitamin D and the length of exposure, and dogs may exhibit symptoms such as vomiting, loss of appetite, increased thirst, increased urination, excessive drooling and weight loss, according to the company’s press release about the recall. Vitamin D, when consumed at very high levels, can lead to serious health issues in dogs including renal dysfunction. 

The lawsuit, filed on Feb. 12 in the U.S. District Court for the Northern District of California, seeks monetary damages and injunctive relief to prevent Hill's from selling pet food with dangerous levels of vitamin D.