Your mission, should you choose to accept it: eating nothing but US Army rations for three weeks, and nothing else.
While the premise doesn't sound impossible, well, it doesn't exactly sound appetizing. But the military is currently seeking volunteers to participate in a study by the US Army Research Institute of Environmental Medicine, or USARIEM. Volunteers who qualify will eat nothing but Meal, Ready-to-Eat (MRE) rations for 21 days, along with water and black coffee. And for the trouble, the Army will pay you up to $200 -- not a bad gig, really. Free food for three weeks, and $200. It's way better than a seasonal job at the mall.
"Twenty-one days is consistent with current field feeding policy, and research has shown that consuming MREs for this length of time does not hurt a warfighter's nutritional status," Holly McClung, a research dietitian from MND, said in an Army release. "But older and new research shows us that, in addition to nutritional status, a healthy gut is also important for physical and mental health."