two minutes you get a drink that tastes refreshing and light. There is only a hint of flavor, and it also does not overpower water's thirst-quenching natural state.The nuun tabs have 360mg of sodium apiece as well as three other electrolytes, potassium, magnesium and calcium. There is no sugar, no caffeine, and little else in nuun, which takes the most minimalist approach to its product in the fizz-and-drink category.ZYM sets itself apart from nuun by adding B vitamins and, for its ZYM Massively increase product, 100mg of coffee. I get a greater immediate boost from ZYM than nuun. Its taste in either of the company's two flavors (berry and lemon-lime), is stronger, too.CamelBak's Elixir, another sugar-free capsule, costs about $10 for a tube of 13 tablets. This is more money than the competition, but Elixir is more targeted and goes a lttle bit further. Each CamleBak tablet works for up to twenty-four ounces of water. We often use them in a 16-ounce bike water bottle, and the flavor is noticeably more powerful than nuun or ZYM.Pocima, like one other companies' options, is straightforward to drink. It comes in orange, lemon-lime, and berry flavors. All are good-tasting and refreshing.