Unsurprisingly, the military uses the gum that has “military” in its name: Military Energy Gum. The U.S. Army Medical Research Center has tested this gum in over 30 clinical trials and found it can help improve cognitive and physical performance and provide extra energy during continuous military operations. The company claims over 5 million packs have been sold to the U.S. armed forces. But this gum isn’t just for military personnel. Anyone who wants to can purchase this proprietary military caffeine gum.