Recent testing of U.S. military food—including Meals Ready-to-Eat (MREs) and cafeteria meals served on military bases—has raised new concerns about the presence of pesticides, heavy metals, veterinary drugs, and other contaminants in food consumed by service members. While military rations are designed to provide convenient and shelf-stable nutrition for troops in demanding environments, independent laboratory testing suggests that some of these meals may contain a wide range of contaminants.