Bests & Worsts Reviews from Amazon

I buy the Nuun Active Hydration in this 4-pack every month or two. I have to drink something with sodium in it to retain salt. I have no adrenal glands. Gatorade is expensive and too high in calories. I only like one flavor it, also. I love all 4 flavors of this 4-pack, although I really love the Citrus flavor the most. Nuun is low-calorie and all-natural, unlike most drinks mixes. It is easy and convenient when traveling or to keep handy in my purse. Most of all, it works for my needs. For those who don't know the difference between the 3 types of Nuun, you may be giving an inappropriate review. There are 3 major types: 1) This one, Active hydration. Each tube has 12 tablets, each making a 16 oz serving. They are easily split if necessary. The ingredients and nutrition are as follows: Active Ingredients Sodium (carbonates) 360.0 mg Potassium (bicarbonate) 100.0 mg Magnesium (sulfate) 25.0 mg Calcium (carbonate) 12.5 mg Vitamin C 19.0 mg 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. 2) U Natural Hydration (A Nuun Product) Active Ingredients Vitamin A 1375 IU Vitamin C 10.0 mg Thiamin 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 Level 41 mg Other ingredients: dextrose, citric acid, natural flavors, vegetable juice color, sesame oil. 3) Nuun All Day Hydration Vitamin A 750 IU Vitamin C 60 mg Vitamin D 200 IU Vitamin E 15 IU Thiamin 750 mcg Riboflavin 850 mcg Niacin 10 mg Vitamin B-6 1 mg Vitamin B-1 23 mcg Pantothenic Acid 5 mg Magnesium 20 mg Zinc 750 mcg Selenium 3.5 mcg Manganese 100 mcg Chromium 6 mcg Sodium 60 mg Potassium 200 mg Other ingredients: citric acid, sorbitol, natural flavors, stevia leaf extract, natural color, wheat germ oil. UPDATE: I've also tried a new (to me) product called "Fizz" recently. I like it. It is not as sweet as Nuun, but very good. I've only used the grapefruit flavor. It doesn't dissolve quite as well as Nuun, so have to mix/shake/stire it at some point. http://smile.amazon.com/Hammer-Endurolyte-Fizz-Grapefruit-Tablets-54-6g/dp/B004UELJNO/ref=pd_sim_hpc_1?ie=UTF8&refRID=0QRV97YF08TV4B8VN8QS