Effervescent Magnesium Supplement. Natural flavor. Non GMO Project verified. nongmoproject.org. 10 servings per tube. For recovery. Hydration you can feel. t's simple: when you're well hydrated, you just feel better, Nuun's effervescent drink tablets are bursting at the seams with serious hydration power. Drop a tablet in 4-6 oz (50 ml) of water for a clean, tasty, slightly fizzy beverage. Our tiny bubbles go to work to ensure your body quickly soaks up all the goodness of Nuun's pure electrolyte blend. nuunlife.com. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat cure, or prevent any disease.)