Hill's Pet Nutrition voluntarily recalled 25 products last week over concerns of excessive vitamin D, a problem that could be deadly.
Dogs who eat too much vitamin D can experience vomiting, loss of appetite, increased thirst, frequent urination, excessive drooling and weight loss, according to the Food and Drug Administration. High doses of the vitamin can also cause kidney failure.
The company said in a statement that it has "isolated the error" and is implementing additional testing to prevent this from happening in the future. No dry dog food from the company was affected, according to the recall.