 Clinical studies in Japan have also shown that DAG oil may increase overall metabolism, helping reduce the amount of fat already stored in the body.On September 16, 2009, Kao Corporation, maker of Econa Cooking Oil has voluntarily suspended sales of products containing DAG oil in Japan, which include cooking oil, mayonnaise, salad dressing, and pet food products.The company is cited as considering suspending the sales of Enova Brand Oil sold in North America.