en de
Affiliate links on our site may earn us commissions. Learn More.
Nuun Hydration Review: Does It Truly Work?

Nuun Hydration Review: Does It Truly Work?

The human body loses electrolytes through exercise, so replenishing them with some tablets may boost your performance. Nuun Hydration offers supplements to maintain hydration, but do they work? We provide more details about this product and its potential benefits.

nuun hydration review
The Image Party / Shutterstock.com

How do we vet brands and products? Learn more.

Feeling dehydrated on a run can be one of the worst feelings.

Sweating disposes of electrolytes, which are essential minerals that keep everything functioning properly. Not retaining enough of those electrolytes will lead to discomforting side effects. This might be lethargy, constant headaches, nausea, irregular heartbeat, and mental confusion. 

Certain products are made to combat this problem. Nuun Hydration tablets may support your exercise performance by replenishing those electrolytes and regulating fluids among cells. Does this dietary supplement really work, and how can it benefit your fitness journey?

In this article, we review Nuun Hydration tablets and whether you should try them.


nuun logotype
Nuun Sport Electrolyte Drink Tablets
  • Easy to take with you
  • Low in sugar
  • Fuels your body with hydrating electrolytes
  • Encourages people to drink more water
  • Helps those who do regular and intense workouts
Our rating:
Learn More
  • There are lots of flavors.
  • Non-GMO ingredients boost energy levels.
  • Hydrating blend to fuel your body.
  • The tablets are easy to travel with.
  • Only 15 calories per serving.
  • No international shipping on their website.
  • It’s expensive to keep buying the tablets.
  • Some people report their drinks being chalky.

Nuun Hydration is a dietary supplement that can fuel your body with hydrating electrolytes. The refreshing blend may boost exercise performance and help runners maintain long-term endurance. Some of these minerals include sodium, calcium, potassium, and magnesium.

People can buy a 10-tablet tube and choose from flavors like fruit punch, strawberry lemonade, grape, and many more. You also get the chance to buy certain flavors that contain caffeine. For example, if you want to feel more awake, you might try fresh lime with organic green tea extract.

⭐ Rating


✅ Pros

Supports electrolyte & fluid balance, affordable, convenient

❌ Cons

High in sodium, some formulas are expensive

🍎 Flavors

13 flavors available

🔔 Ingredients

Magnesium oxide, calcium carbonate, potassium chloride

💰 Price

From $6.99

Comparison Table

scroll hint
Cure Hydration
Nuun Hydration Sport Tablets

There are loads of different flavors to choose from on their official website page

Prevents dehydration

Could help people lose more weight

Boosts energy levels

Lots of flavors to choose from

The tablets have less than 15 calories

Nuun supplements are vegan, gluten-free, and non-GMO

You can drink more water while enjoying the fresh flavors 

Some people could be allergic to coconut

The ingredients come in small amounts 

No international shipping

Customers report some of their drinks being gritty

Expensive for only 10 tablets in each tub 

Cure Hydration
Nuun Hydration Sport Tablets
Overall Rating

There are loads of different flavors to choose from on their official website page

Prevents dehydration

Could help people lose more weight

Boosts energy levels

Lots of flavors to choose from

The tablets have less than 15 calories

Nuun supplements are vegan, gluten-free, and non-GMO

You can drink more water while enjoying the fresh flavors 


Some people could be allergic to coconut

The ingredients come in small amounts 

No international shipping

Customers report some of their drinks being gritty

Expensive for only 10 tablets in each tub 

What Are Nuun Hydration Tablets? 

Nuun Hydration tablets are supplements designed to support electrolyte balance. People who regularly exercise and sweat need electrolytes; otherwise, they’ll face serious dehydration. All you need to do is dissolve one tablet in a glass of water and drink that to maintain energy. 

These Nuun electrolyte tablets can especially promote hydration without feeding your body sugars or artificial sweeteners. In just one pill, you’ll find ingredients like avocado oil, beet powder, and stevia leaf, all of which balance electrolyte levels after physical activity. 

Most people take these dietary supplements during and after a long-distance run. However, you can take them whenever you want throughout the day. Creators of the Nuun tablets encourage customers to stay “healthy and hydrated” when they improve their athletic performance.

3 Benefits of Nuun Hydration Tablets 

These Nuun tablets offer many benefits when it comes to exercise. People who regularly go for long runs may understand the problem of dehydration. Fluid loss after working out can cause many symptoms, some being a dry mouth, increased thirst, severe fatigue, and migraines. 

Below, you’ll find 3 benefits that combat these side effects:

#1 Supports hydration 

The Nuun Sport tablets can enhance hydration status after exercise. Your body needs plenty of fluids to function properly and replenish energy levels. Going into dehydration may have long-term side effects that affect your overall health, so it’s important to stop and drink.

Some people might consume lots of plain water, but not everyone enjoys that. Adding flavored tablets can boost hydration without it feeling like a chore. If you have high blood pressure, drinking dissolved supplements in water can lower hypertension symptoms after long runs.

Remember that regular sports drinks don’t saturate your body. They contain high amounts of sugar and sweeteners – two ingredients known to cause weight gain and type 2 diabetes. It’s always better to opt for natural supplements, like Nuun, that focus on proper hydration. 

#2 Promotes electrolyte replenishment 

A Nuun tablet can replenish electrolytes after you’ve sweated them out. This electrolyte beverage contains sodium, magnesium, potassium, and calcium to give you that quick energy boost. If your body lacks these minerals, you’ll soon feel exhausted and unable to function. 

Not everyone realizes that fluid balance is very important for your health. It helps regulate chemical reactions and maintain fluids in and outside of cells. Most of the time, you’ll naturally find this balance when eating food and drinks that contain electrolytes and vitamins.

#3 Boosts energy levels

A Nuun energy boost mainly comes down to the active ingredients. Organic green tea extract and avocado oil may improve your physical performance. For example, avocado oil retains lots of antioxidants – compounds that feed the body more energy and keep it free of harmful toxins.

The more energy you have, the more likely you’ll lose weight and avoid muscle cramps. Some Nuun Sport tablets are also made with caffeine. As you probably know, caffeine alerts your brain and makes you feel more awake, which leads to an energy spike after consumption. 

2 Nuun Tablets Side Effects 

Lots of workout supplements like Nuun have potential side effects. Not every tablet works for people’s needs and helps them feel replenished. Even though Nuun could produce very small symptoms, that doesn’t make it unsafe to use, especially for people who don’t exercise. 

Here are some possible side effects of Nuun supplements:

#1 Possible caffeine overdose

Some of the side effects might derive from caffeine consumption. Too much caffeine can cause headaches, fast heart rate, dehydration, anxiety, and shakiness. Experiencing these symptoms may stop you from working out, so it’s important to keep that in mind when buying the tablets.

Another thing to note is that some of the Nuun supplements contain 40mg of caffeine. This applies to the cherry limeade, fresh lime, mango orange, and wild berry flavors. It’s recommended that you stay below 400mg a day to prevent those unwanted side effects.

#2 Too much sodium 

Of course, sodium is an important electrolyte, but too much of it can be unpleasant. Large amounts of this mineral might increase the risk of heart disease, high blood pressure, and kidney disease. This is why you need to carefully monitor how many tablets you have each day.

There is 300mg of sodium in each small tablet. The ideal amount you get each day should be no more than 2,300mg. So, if you decide to consume 4 of these tablets throughout the day, you’ll be getting 1,200mg of sodium, which is too much for your average diet. 

People who currently have long-term heart problems need to avoid this supplement unless your doctor says it’s safe. The same goes for hypertension conditions and pregnant women. Always get advice from a medical professional before you take new dietary supplements. 

What Ingredients Does Nuun Hydration Contain? 

Nuun supplements contain natural ingredients that can benefit your health. The ingredients are also vegan and gluten-free, making it perfect for a range of diets. Nuun is verified by non-GMO organizations, so the formula hasn’t been genetically altered. 

Let’s take a look at some of the main ingredients:

#1 Avocado oil 

Avocado oil contains lots of unsaturated fats that decrease cholesterol levels. The less low-density lipoprotein you have, the more likely you won’t get heart disease. A stronger heart means you can work out safely while taking Nuun Energy or Sport Hydration supplements.

This natural ingredient may also strengthen natural brain functions. The antioxidants remove free radicals that might cause oxidative stress. Healthy brain cells ensure you can function properly during exercise and experience fewer episodes of anxiety and depression. 

#2 Beet powder color 

Beet powder is a rich source of iron, calcium, and potassium. Your body needs these important nutrients to maintain strength and relieve any muscle cramps after exercise. Some people claim that this powder actually boosts athletic performance in those who consume more nitrates. 

Getting more nitrates in your diet can improve blood flow, oxygen uptake, and overall endurance. This means you have a reduced risk of developing heart disease in the future. However, be aware that too many nitrates promote serious constipation and fatigue. 

#3 Riboflavin 

Riboflavin (vitamin B2) is often found in plant and animal-based foods. It’s one of the 8 B vitamins that can support your digestive system. This mineral helps the body break down carbohydrates, protein, and fats, while developing the lining of your digestive tract. 

Since the Nuun Energy or Sport tablets contain riboflavin, you can maintain better gut health in the long term. Vitamin B2 also plays a huge role in providing energy boosts. This is because it strengthens energy production when you consume lots of healthy fats and carbohydrates. 

#4 Citric acid 

Citric acid is the compound naturally present in citrus fruits. This is what gives lemon and limes a sour taste, making it perfect for the bitter Nuun supplement flavors. Many people believe that this organic compound contributes to a strong metabolism and nutrient absorption

As you might already know, people with a fast metabolism usually burn more calories. They can lose weight at a faster pace and eat calorie-dense foods. Consuming the Nuun dietary supplements may speed up your metabolic rate and support future weight loss results.

#5 Malic acid 

Malic acid is another organic compound that resides in certain wines and fruits. It may help with chronic fatigue syndrome – a disorder known to make people extremely tired for months. Getting more of this compound in your diet could help you feel more energized to work out. 

However, consuming too much malic acid can lead to symptoms like headaches, allergic reactions, stomach pain, nausea, and constipation. You could even face back pain from diarrhea, depending on how many Nuun Energy or Sport tablets you eat throughout the day. 

#6 Stevia leaf extract 

Stevia leaf extract is a common ingredient used to sweeten supplements, like Nuun Energy or Sport. This can stop companies from using sugar to enhance the flavor. Adequate amounts of stevia extract may lower blood glucose levels in combination with regular exercise routines.

How Much Caffeine Is in Nuun Hydration Tablets? 

There is 40mg of caffeine in one serving (a single tablet) of the Nuun Hydration tablets. This comes from green tea extract that contains bioactive compounds. People should aim to drink no more than 4 of these supplements a day, as you don’t want to experience a caffeine overdose. 

You can only find caffeine in the cherry limeade, fresh lime, mango orange, and wild berry flavors. The other dissolvable capsules don’t have caffeine, making them perfect for people with a sensitive gut. Remember that caffeine actually makes dehydration worse in the heat. 

How We Tested Nuun

Learning more about the pros and cons of this supplement is important. You can determine whether these pills are worth implementing into your dietary routine. 

Below, we explain these factors in more detail:


Nuun offers high-quality products that aim to enhance your performance. They have a range of unique supplements, including Nuun Energy, Rest, Immunity, and Daily. You can tell by the ingredients if something is good-quality, especially if they’re non-GMO and vegan-friendly.


Capsules that dissolve in regular water might not suit everyone. The effectiveness depends on when you take them and how much you sweat during exercise. It’s hard to determine the outcome of this dietary supplement, so it’s better to read reviews or try Nuun for yourself.


The price point won’t benefit those who are looking to purchase them regularly. One tub of Nuun Energy or Sport costs $7.49. This price goes down by 15% if you subscribe to Nuun, so you can pay for the subscription or buy 8-pack boxes that contain your favorite capsules.

Brand reputation

Looking at their official website, we found that Nuun pride themselves on hydration and wellness. They wanted to create products for people who are not just athletes. Nuun focuses on “clean-ingredient lifestyle” items when helping you stay fully hydrated and healthy.


Is it good or bad to use Nuun Hydration tablets?

There’s nothing wrong with using Nuun Hydration supplements. They are great for maintaining hydration, boosting your energy levels, and regulating electrolyte balances. It might be bad to take more than 6 tablets in one day, depending on how much you exercise and sweat.

Are Nuun Hydration tablets safe to use?

Yes, the Nuun supplements are perfectly safe to consume. They contain natural ingredients that boost your workout results and overall performance. If you do have certain medical conditions, it might be worth speaking to your doctor about electrolyte tablets and their long-term benefits.

What flavors of Nuun Hydration exist?

Nuun Sport supplements come in 13 flavors. These are citrus fruit, grape, fruit punch, lemon lime, orange, strawberry lemonade, tri-berry, tropical, watermelon, cherry limeade, fresh lime, mango orange, and wild berry. The last 4 flavors contain a small amount of caffeine.

Is it okay to drink Nuun Hydration every day?

You can definitely drink these dissolved supplements every day. Most people regularly visit the gym or go for a long run, so an energy-boosting beverage is needed to maintain strength. However, you don’t need this every day if you’re resting and not getting much exercise.

A Word From Our MD

The Nuun Sport capsules contain magnesium, potassium, and sodium – important electrolytes that support your health much better than Gatorade or other sports drinks. Drinking plenty of water is key to losing weight and preventing serious dehydration from an intense workout.

Nuun products have a low sugar content compared to other drinks that athletes have. For example, Gatorade contains 12.8g of sugar, making it unhealthy for your diet. This is something to keep in mind when purchasing the capsules or other Nuun Energy tablets.

If you do want new dietary supplements, always consult your doctor first. People with certain health conditions need professional medical advice to prevent side effects.


So, should you buy the Nuun Hydration tablets?

These supplements have lots of flavor and nutrition to support your performance. Active men and women can use these dissolvable capsules when fueling the body. However, you need to be aware of the caffeine and sodium ingredients, as they might cause unwanted side effects.

Written by
Isabel Mayfield is a certified yoga instructor with over 10 years of experience in the fitness industry. She is passionate about self-improvement and loves to help people improve their sense of self-worth through education and support in meeting their fitness goals.
The article was checked by Rosmy Barrios, MD
Was this article helpful?
Thank you! We received Your feedback
Share on
facebook twitter pinterest linkedin

0 Reviews

Leave a review

Thank you for your comment!
We will review it as soon as possible.