Nuun is a simple, easy to use solution for proper hydration. We spent a lot of time getting the performance of Nuun just right to ensure the optimal balance. If you’re interested in learning more about the specifics of what Nuun is and why, read on. And for proper hydration while reading on, we recommend Nuun. Try one of our most popular flavors: Tri-Berry, Lemon Lime, Strawberry Lemonade, and Lemon Tea.
The following is the nutritional information for a serving of Nuun based on one tablet dissolved in 16oz (500ml) of water. There are under 8 calories per Nuun tab.
| Active Ingredients | level (mg) |
| Sodium (carbonates) | 360.0 |
| Potassium (bicarbonate) | 100.0 |
| Calcium (carbonate) | 12.5 |
| Magnesium (sulfate) | 25.0 |
| Vitamin C | 37.5 |
| Vitamin B2 | 500 mcg |
Other Ingredients: citric acid, sorbitol, sodium carbonate, natural colors flavors, sodium bicarbonate, potassium bicarbonate, polyethylene glycol, magnesium sulfate, sodium benzoate, calcium carbonate, acesulfame potassium, riboflavin-5-phosphate.
**Lemon Tea and Kona Cola each contain 20mg of caffeine per 8 oz. serving (40mg per tablet). That's about a third of the caffeine found in your average cup of drip coffee.**
The following is the nutritional information for a serving of U Natural Hydration based on one tablet dissolved in 16oz (500ml) of water. There are under 8 calories per U Natural Hydration tab.
| Active Ingredients | level (mg) |
| Vitamin A | 1375 IU |
| Vitamin C | 10.0 mg |
| Thiamine | 330 mcg |
| Riboflavin | 460 mcg |
| Niacin | 5.5 mg |
| Vitamin B-6 | 550 mcg |
| Folate | 110 mcg |
| Vitamin B-12 | 1 mcg |
| Biotin | 66 mcg |
| Pantothenic Acid | 2.0 mg |
| Magnesium | 20.0 mg |
| Zinc | 2.0 mg |
| Sodium (carbonates) | 180 mg |
| Potassium (bicarbonate) | 77 mg |
| Choline (bitartrate) | 110 mg |
| Stevia Leaf Extract | 41 mg |
Other Ingredients: dextrose, citric acid, natural flavors, vegetable juice color, sesame oil.
Allergy Information:
Corn: Nuun and U Hydration have no corn in them, but as some of the ingredients are processed from corn as starting material, we cannot guarantee it is 'corn free' for those of you with corn allergies.
Gluten: Nuun and U Natural Hydration are gluten free.
Vegan/Vegetarian: Nuun and U Natural Hydration contain no animal derived raw materials.
Nuun’s formulation is based on years of research and feedback from some of the world’s top academic and practicing experts in the field of sports medicine—specifically in dehydration and hyponatremia. Nuun's development is focused on the three most important aspects of proper hydration:
One of the most important characteristics of what you drink while you're active is the speed at which your body can absorb it. The concentration of dissolved salts and sugars (osmolarity, for those more technically inclined) determines how fast the drink can cross from your digestive track into your bloodstream, where it can re-hydrate and replenish you. Nuun produces a hypotonic solution, so your body absorbs Nuun faster than the leading “sports drinks” or even water alone. This gives your body the ability to restore optimal water and electrolyte balance quickly and efficiently.
The American College of Sports Medicine recommends that people who are active for more than one hour get 500–700mg of sodium for every liter of water they consume. This is up to three times the sodium amount that traditional “sports drinks” provide. Some experts in the field believe that sodium concentrations should be closer to the 700–1000mg range. In addition to other critical electrolytes, Nuun provides 700mg of sodium for every liter of drink to ensure that you are adequately replenishing your body to help you perform at your best and stay healthy.
Nuun contains no carbohydrates for a couple of reasons. The first being speed of absorption. Ingesting drinks containing high levels of carbohydrates can slow the rate at which your stomach empties, delaying the absorbance of the water and electrolytes. Carbs also increase the osmolality of what you're drinking, delaying absorption beyond the stomach. But we know some people simply want to avoid unnecessary carbs, and it doesn't make sense to consume sports drinks loaded with them. Now, if you're participating in intense exercises lasting more than 60 to 90 minutes, you should consume carbohydrates to ensure energy levels for working muscles. But how you do that is up to you. Everyone manages energy consumption differently, whether it’s with sports bars, gel or other sources of calories and carbohydrates.