you get a drink that tastes refreshing and light. There is just a hint of flavor, also it does not overpower water's thirst-quenching natural state.Typically 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 the 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 caffeinated drinks. I get a larger immediate boost from ZYM than nuun. Its taste in either of you're able to send two flavors (berry and lemon-lime), is stronger, too.CamelBak's Elixir, another sugar-free tablet, costs about $10 for a tube of twelve tablets. This is more money than the competition, but Elixir is more focused and goes a little further. Each CamleBak tablet works for up to 24 ounces of water. I actually often use them in a 16-ounce bike drinking water bottle, and the taste is noticeably stronger than nuun or ZYM.Pocima, like one other companies' options, is simple to drink. It comes in orange, lemon-lime, and berry flavors. All are good-tasting and refreshing.