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gu electrolyte tablets

Another complement to their energy gels, GU Electrolyte Tablets have been added to the GU product line.

These are straight up electrolyte tablets. No carbs, no sugar, no amino acids. Just electrolytes.

What’s the point? Hydration. That’s it. If you want to get electrolytes for better hydration, but you don’t want any extra calories, this could be for you.

Just pop 1 tab into 16oz water and you’re ready to go.

GU Electrolyte Tabs Health and Nutrition Info

Let’s see exactly what’s in these tabs.

Here are the ingredients for the strawberry lemonade flavor:

Ingredients: Citric Acid, Sodium Bicarbonate, Sorbitol, Natural Flavors, Fructose, Potassium Bicarbonate, Sodium Carbonate, Stevia Leaf Extract, Sesame Oil, Vegetable Juice Color, Magnesium Oxide.

To cut calories, they use sorbitol (a sugar alcohol) so they can use less fructose (sugar.) Then they use stevia as a sweetener to make it sweet enough, without adding any more sugar or carbs.

I don’t necessarily consider those ingredients better or worse than sugar. I’d be fine with a little extra fructose or glucose. However, sorbitol is known to cause some gastrointestinal distress is certain individuals, so watch out for that.

Otherwise, it’s mainly electrolytes.

Each tab contains less than 1 gram of sugar and just 10 calories.

The electrolyte content consists of 320mg sodium and 55mg potassium.

There is no mention of calcium or magnesium content. While sodium and potassium are the primary electrolytes you should replace, most products that dub themselves “electrolyte replacements” contain more.

GU Electrolyte Tabs Taste Test

There are only three flavors to choose from.

Strawberry Lemonade

A light fizz and a very light flavor. It didn’t taste watered down. The flavor is just real faint if you know what I mean.

It’s decent, but nothing special. Even if it was more potent, I wouldn’t be getting excited. It’s not bad like you get with drinks containing sucralose, it’s just not appealing. Overall it was a little disappointing.


The orange flavor is an odd flavor, but it’s interesting. Not your typical orange. Very tangy. Again, it’s not that strong, but it’s more potent than the strawberry lemonade one. Regardless, there’s much better tasting stuff out there.

Lemon Lime

This was actually a good lemon lime flavor. It’s an effervescent lemon lime, like if Emer-gen-C did a lemon lime flavor. Otherwise I can’t make a comparison. Unfortunately, the prominent stevia flavor takes away from the overall goodness.

I’d give it a “not bad” because it’s still much better than the GU Brew in lemon lime, and there’s no weird, unexpected aftertaste.

If I had to choose…

None of the electrolyte tablets were good, but lemon lime was the best, simply because it was the lesser of the three evils.

GU vs Nuun

When it comes to fizzy electrolyte drinks, Nuun is the name to beat. Let’s see how these stack up.

With GU, you get low calories, a sugar alcohol, a somewhat natural sweetener, decent flavor, and sodium and potassium.

With Nuun, you get low calories, sugar alcohols, an artificial sweetener, better flavor, and more electrolytes (not just sodium and potassium, but also calcium and magnesium.)

So if you are looking for just an electrolyte tablet, the Nuun tablets taste better and offer more electrolytes for similar calories.

I’d encourage you to look at all your options before making a decision, though.

What about GU Electrolyte Brew?

While GU’s tablets give you a few more electrolytes than the powder, that powder might be a better fit for you.

GU Electrolyte Brew powder gives you carbs and calories as well as electrolytes. Plus, it is absolutely delicious.

Of course, neither one is a substitute for GU gel which consists of carbs, electrolytes, and amino acids.

My final verdict is…

These all taste awful. If you need electrolyte tablets, I’d steer you towards Nuun or another company. If you don’t mind something with a few more calories, consider the GU Electrolyte Brew.

Official website: www.GuEnergy.com

Buy online: www.Amazon.com

Product Review Details
Company: GU Energy Labs
Product: GU Brew Electrolyte Tablets
Reviewed by: Coach Levi
My Rating: 2.0 out of 5
Date last updated: 2015-04-25
Obtained Product: Free sample from company.
CoachLevi.com Advertiser: No.

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  1. I have to agree with you. After switching from Orange GU tabs to plain water in the same bottle, the bottle now tastes of squished ants. Nuun or Shotz are the way to go.

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