The U.S. Army Institute of Environmental Medicine is looking for volunteers (PDF) to eat military food rations for 21 consecutive days for a study of the impact of Meals, Ready-to-Eat, or MREs, on gut health. Researchers want to learn how MREs influence the millions of bacteria in troops' digestive systems. "Interactions between the millions of bacteria living in our gut and what we eat is a very important factor in gut health, but we don't know how MRE foods interact with those bacteria to impact gut health," Holly McClung, a research dietitian working on the project, said on the Army's...