Natural Balance issued a voluntary recall of some of its dog and cat food after receiving calls the food had sickened pets, the company announced. Pacoima-based Natural Balance waits on test results for its canned Venison & Brown Rice Formula dog food and Venison & Brown Rice Formula dog treats. The company has also tested its Venison & Green Pea dry cat food. Customers should avoid using the food regardless of its date code and return the unused portion to a retailer for a refund, the company said. The company notified distributors and retailers by phone and e-mail to stop selling the Venison dog food and treats and Venison dry cat food.