Here's what other sites are saying:
Looking for a better way to stay hydrated, look no further. Just drop a Nuun hydration tablet in your water bottle and get complex sugar-free electrolyte refreshment your body needs to keep on going. Nuun is more efficiently absorbed that water or other sports drinks and delivers electrolytes, vitamins and minerals to ensure your body stays properly hydrated.
- Altrec Outdoors
Tired of watering down neon-colored sports drinks to make them tolerable or carting around sticky, sugar-laced powders? Take one lightweight tube of Bigger Nuun with you on your next backcountry outing, and enjoy 12 quarts (three gallons) of hydrating H2O goodness. Bigger Nuun works like its little brother, regular-sized Nuun, except the tablets are larger, so they're ideal for long trips and use in hydration bladders (you can also break them in half if you want to dissolve in smaller amounts of water). The athletes at Nuun worked hard to create the optimal blend of electrolytes to help you perform at your best and decrease the likelihood of hyponatremia (too little sodium). Since you don't need sugar to hydrate-carry a few gels, energy bars, candy bars, or a beer for your carb needs-Nuun left that out. One six-pack holds six tubes with 12 tablets in each.
Nuun Active Hydration Tablets
Nuun All Day Hydration Tablets
Nuun U Natural Hydration Tablets
Skratch Labs Exercise Hydration Mix
$2 - $19
Hammer Nutrition Perpetuem
$3 - $30
Hammer Nutrition Recoverite Drink Mix
$4 - $59
Backpacker's Pantry Whole Milk
GU Electrolyte Brew Tablets