Kraft Foods is voluntarily recalling all Taco Bell Home Originals taco shell products sold nationwide only in supermarkets and other retail grocery outlets. Tests performed by an expert independent laboratory have indicated the presence in certain samples of a variety of corn Kraft had not specified for the product and which has not been approved for use in food. While the corn variety, known as "StarLink," has not yet been approved for use in food, at this point there appears to be no evidence of adverse health effects. "As soon as we learned that there might be an issue in the supply chain we purchased from, we have been guided by one priority - the safety of our products and their compliance with all regulatory requirements, " said Betsy Holden, President and Chief Executive Officer of Kraft Foods. "Testing has now indicated the presence of `StarLink' and we are immediately withdrawing all affected products." The products being recalled are: