Use of hydration drinks in the military which are acidic could set the stage for very long lasting difficulties. Gatorade for example has a pH of around 3. Acidic drinks can reduce synthesis of RNA, reduce synthesis of DNA and reduce protein levels. See this post. Also see this post.
Drinking hydration drinks could result in difficulties that are persistent and which can become worse as time passes. Subsequent to drinking hydration drinks in the military some vets could land up homeless.
Natural flavors in hydration drinks can result in global overview being undermined. See this post. Individuals are in the military for duty, honor and country which is undermined by natural flavors in hydration drinks.