The US Army has created a new "power bar" for troops known as HooAH. The bar consists of corn syrup, crisped rice, and other components, and comes in several flavors (chocolate, apple-cinnamon, raspberry, cranberry, or peanut butter). The bars are designed to slowly release glucose into a soldier's digestive system, providing a sustained source of fuel in stressful conditions. Bars of this type were taken on the recent space shuttle flight and consumed by astronauts before and after the strenuous spacewalks.--Stephen V Cole