Food Reviews

Nuun Hydration Tabs Review

Electrolytes are important for your muscles to contract correctly, so you don’t get cramps or have muscle fatigue. In our average day, most of us do not require added electrolytes. However, for strenuous workouts with much sweat loss lasting more than 2 hours an electroylte like Nuun would be a good idea. You put one tab in 16 oz. of water, watch it fizz and drink.

“Nuun is a portable sports drink mix that contains the necessary electrolytes to keep you properly hydrated without all the sugars like most sports drinks.  It’s used by cyclists, triathletes, runners, hikers, yoga bods, just about anyone who’s active and wants to stay properly hydrated. Drop a Nuun in a bottle of water and you’re good to go.”  

Nuun kindly sent me 5 different flavor tubes of their electrolyte drink tabs and 2 water bottles to review. The little recyclable plastic tubes they came in are the perfect size to slip in your purse or running/hiking pack. The tabs themselves remind me of large sweet tarts, natural pastel colored using B2 & beet juice and scented lightly with each flavor. They contain four essential electrolytes: sodium, potassium, magnesium and calcium; and vitamin C & B2. Electrolytes  are important for your muscles to contract correctly, so you don’t develop cramps or muscle fatigue. In our average day, most of us do not require added electrolytes. However, for strenuous workouts with much sweat loss lasting more than 2 hours an electrolyte like Nuun would be a good idea. You put one tab in 16 oz. of water, watch it fizz and drink.

We found that for our everyday tastes or tasks like working in the yard, usually half to a fourth a tab in a full bottle of water is a good amount. They even have a notch for breaking in half (think like on Rx pills). They have zero sugar,  or carbs (great for my diabetic friends and their children), are under 8 calories and do help keep you hydrated. For workouts at the gym including lifting, Step classes, Yoga, running and Zumba, or working at the barn & riding for a few hours in 90-something degree weather I found a full tab was great. I noticed less muscle soreness and less cramping which I tend to get in my stomach, under the left rib-cage when I run. They also are good in portable hiking packs/bladders like Camelbacs because with no sugar and a clean (not gritty) texture they won’t clog or inhibit the growth of yucky things. They would be awesome for hiking/pack trips if you used chlorine tablets to clean your water too (now I would prefer our MSR Autoflow Gravity Filter, but that review is later: ).

The flavors I tried were Strawberry Lemonade, Lemon-Tea, Tropical, Tri-berry and Lemon-Lime. My favorite was the Strawberry Lemonade and Tri-berry flavors. My friend liked the Lemon-Lime best. They do not compare in taste to anything I have tried before, definitively not like a sickeningly sweet sports drink or flavored water like Propel.  They have an almost effervescent taste and similar to a less sweet, watered down drink mix.

The only thing I’m not crazy about is some of the other ingredients including sorbitol, polyethylene glycol, and acesulfame. I think there are plenty of other natural ingredients (Stevia etc.) that could replace the extra overly processed ones.


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.”

Nuun does make “U Natural Hydration Tabs” for lower intensity or everyday activities which have more Vitamins and minerals added and less “other” ingredients:


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.”


Overall, I think these are a good product, but I would challenge Nuun to work on modifying their ingredient list to less “other” ingredients and more natural, whole ones (similar to their “U Natural Tabs” minus the dextrose).

A tube costs about $6 and includes 12 tabs.

Let me know if you’ve tried them and if you notice a difference in your performance, less cramping etc. and what is your favorite flavor?


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