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Review: Nuun Electrolyte Drink Tabs

With the massive heat wave that has settled in across the country, it is even more important to keep on top of hydration during exercise.  Running earlier in the day certainly helps, but when the temperature is 75 degrees with 85% humidity at 6 AM, it can still be dangerous to athletes. 

I don’t do well with Gatorade or other sports drinks (some versions of Powerade also contain gluten).  I do recognize that on days with extreme heat & humidity, I am going to need more than water.  Enter: Nuun Electrolyte Drink Tabs.  I think part of my issue with sports drinks is the sugar.  I know that the GU gels that I use have sugar and I tend to do better when I use as few as I can.  Nuun doesn’t have any added sugar or artificial sweeteners, making it a good option for me to try.  Also, in addition to being gluten-free, they are vegetarian as well.  Click here to read the FAQ.  More about Nuun:



  • Tabs quickly dissolve in your own water bottle
  • Easy to take with you
  • Absorbs quickly





#1 Selling sports drink tab in running and outdoor specialty

In 2010, Nuun was named one of the 500 fastest growing private companies in America by Inc. Magazine

I purchased a tube of the Nuun tablets at The Vitamin Shoppe last week in the lemon-lime flavor.  They were $4.99 for a tube of 12.  I wanted to try out the Nuun before my next long run, so if my stomach was going to revolt, I wouldn’t be on a 10 mile run.  I tried some last Sunday and Friday at the gym.  I liked the flavor and my stomach seemed to handle it well.  The tablets dissolve quickly in the water with no residue left behind.  I think I may have found something that works for me!  I am hopeful for my 10 miler on Saturday morning with it. 

Nuun can be purchased online or in stores across the US.  Click here to find the store nearest you. 

Have you tried Nuun tablets?

13 comments to Review: Nuun Electrolyte Drink Tabs

  • MJruns

    Tried it when it first came out, not my favorite, though I note they have new flavors (and the RunLikeAMother folks seem to like it a lot). Have tried a bunch of others – my favorite and the one I use on a daily basis is Ultimate Lemonade flavor (canister at home, packs for travel – online at and others, in stores like REI, Hudson Trail, and even Whole Foods). With this massive heat wave, I've also been drinking LOTS of SmartWater (costco) and using that on long runs instead of plain water as well as taking some Hammer Endurolytes caps daily. (Hammer makes a nuun-like product also, Endurolytes Fizz, and their products are GF)

    For races, I've started to have problems carrying my own drinks (no belt seems to suit my sensitive tummy) so I'm trying a new strategy – plain water (will take water provided on course) and a flask of EFS Liquid Shot – absolutely fabulous product, more liquidy than a gel, but with calories AND electrolyes. Two flavors – I went with Vanilla, which is extremely yummy and not overly sweet. I'd been using regular gels, including Hammer and Gu, but my stomach started rebelling quite painfully during and after long runs, it just didn't want what I was giving it. Saw a writeup on the dcrainmakerblog about LiquidShot, tried it and love it. I also seem to be less thirsty for having the electrolyes, which helps because I'm not gulping fluid which sloshes in my stomach.

    It's all trial and error, and figuring out what works for you (which of course changes over time). Hope it worked on your long run!

  • rumfunandsun

    I have been thinking about trying these but haven't yet. I unfortunately found out the hard way that Powerade had gluten in it by making myself sick! I also can't normally tolerate regular Gatorade well but G2 has been settling better perhaps because the sugar aspect?

  • I love nuun! I actually drink it each morning, even if I'm not running that day. I have found that I kind of feel better that way!
    I got a tube of Hammer Endurolytes Fizz, but I don't really like them as much as nuun.

    I'm intrigued by the EFS Liquid Shot that MJruns mentioned. I've had lots of trouble finding things that don't upset my stomach during races. I'm still trying to figure out the calories issue. I can get my electrolytes in via nuun, but I still need a source of calories. Gels I've tried make me queasy, I've packed brown rice and corn chips, which worked okay in training but totally failed me in a race… Been on the hunt for my perfect combo for years! My sensitive digestive tract rebels too frequently! :-)

  • themadbohemian

    I've been thinking about trying Nuun as a couple of other runners have started using it, so thanks for the write up on it. Gives me more information to work with. My stomach tends to be really cranky about change in whatever I use during running, so I'm nervous about trying it, but I'm also a bit bored with Gatorade.

  • Lara E.

    I seem to have chronic hydration/balance issues and have to really work hard at staying hydrated. I was loading up on Smart Water, but hated driving around with water bottles all the time, and lugging them in & out of the store and to & from work, etc, yech! I started adding Nuun to tap/ filtered machine water. I absolutely love love love Nuun and also drink it daily regardless of a run or not. My kids, very active travel soccer athletes, love it too and also want it every day. (Our habit is getting pretty expensive!) Now if I can just figure out how to eat low carb and balance energy levels for long runs, I'll have it made!

  • [...] based on how we feel, pushing only if we felt able.  Hydrating started on Thursday with Nuun, my preferred hydration solution.  It is very easy on a sensitive tummy.  I drank more [...]

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