https://www.armytimes.com/news/your-army/2016/08/02/army-paratrooper-energy-bar-provides-soldiers-a-pre-jump-boost/
If as a paratrooper you've ever gotten hungry between rigging and the jump, scientists from the aptly-named Combat Feeding Directorate have you covered.
army paratrooperenergy barprovidessoldierspre