Best Hydration Tablets

13 Best Hydration Tablets to Fuel Your Body (2020)

  • Last Updated: 24th March 2020
  • Health

So, you’re looking for the best hydration tablets on the market? We don’t blame you, especially since hydration tablets are essential for rehydration and maintaining optimum fluid balance. 

Here at OriGym we've created a definitive list of the best tablets on the market, including products from major brands like SIS to other popular online exclusives. 

So, let’s jump right in on how hydration tablets work! 

OR, if you have a passion for fitness and want to try something new, why not check out OriGym's Diploma in Personal Training or download our latest free prospectus before you carry on reading. 

Also, feel free to download our FREE 16 Week Home Strength Training Programme before jumping in.

How do hydration tablets work? 

It goes without saying that if you are dehydrated, you can combat this by drinking lots of water.

While this is important, the truth is that without replenishing what you have lost in electrolytes, your body will not be able to absorb as much of the water that you drink. 

Taking sports hydration tablets is one of the most effective ways to maintain hydration, as they work wonders for replacing the missing electrolytes lost through exercise (as well as replenishing your fluids). If you want to know more about hydration, see our Sports Hydration qualification

Normally hydration tablets contain a combination of salts, minerals, and glucose which will aid in the absorption of sodium (an essential element for rehydrating efficiently) through the wall of the intestine. When you correct the electrolyte balance in the blood, it will then allow the body to rehydrate by transporting water to where it’s needed most. 

Now that's covered, let's move on to the benefits of taking electrolyte tablets...

Benefits of Hydration Tablets 

You must be wondering; are hydration tablets good for you? We don't blame you for being skeptical, as they can sound pretty strange if you're not familiar with the concept. 

In a nutshell, electrolyte or hydration tablets offer a convenient method of replenishing fluids and are far more convenient for individuals or athletes who place themselves under a lot of physical stress. 

When you take sports hydration tablets you are automatically avoiding sports drinks, which often contain high levels of sugar. If the drink contains more sugar than sodium, these ingredients will not be absorbed correctly. In fact, they will actually cause a build-up in the intestines rather than replenishing hydration levels, which does more harm than good. 

Many athletes who use hydration tablets often consume them during physical activity, as this prevents them from sustaining an electrolyte imbalance (and therefore underperforming or becoming unwell). They also take care to measure their heart rate and calories burned for their own safety (and so that they can later analyse their performance), which you can do too with the help of heart rate monitors.

Now that we’ve discussed how hydration tablets work and the benefits that they bring, it's time to take a look at the products that made it onto our shortlist. Within each review, we’ll tell you when to use the tablets in your workouts for maximum hydration!  

1. Wiggle Nutrition Hydration Tablets (UK)

Price: £3.99 

how to use hydration tablets

Whether you're a moderately active person or an elite athlete, hydration tablets can help you to get the most out of the water that you drink, which is essential for keeping optimum hydration. 

If you’re wondering how to use hydration tablets, all you need to do is mix 500ml of water with one hydration tablet for a low-calorie drink that will help to maintain your hydration levels either before or during your workout. 

The Wiggle Hydration Tablets contain a number of important electrolytes that you will lose through sweat. Each hydration tablet contains less than 7 calories per serving, which is pretty good going compared to the calories that sports drinks contain!  

The product will create up to 10 litres of optimum hydration water from the 20 tablets included in the pack. This will also be a much more cost-efficient way to replenish your lost electrolytes in your workouts when compared to sports drinks, which are significantly more expensive than tablets even when sold in bulk. 

This product from Wiggle tastes great, is easy to consume, and provides the necessary nutrition that you require during exercise. 

It's available in a variety of light and refreshing fruit flavours which should work well alongside other products that you may already be using, such as running gels or performance-boosting energy bars

The action of balancing electrolytes that the Wiggle tablets provide will help to provide better carbohydrate absorption to help you avoid low blood sugar levels. Electrolyte imbalance and dehydration have also been linked to cramping in the body, so this should also be prevented by their use! 

The hydration tablets are excellent value for money. In terms of price, they retail at £3.99 online, and even come in 4 different flavours. 

2. SiS Immune

Price: £4.20

what do hydration tablets do

If you're wondering what are the best hydration tablets on the market?, you can rest assured that this product from SiS is certainly a worthy contender. It functions to support and maintain immune function both during and post-exercise, as well as maintaining hydration levels. 

The tablets are ready to dissolve in water which is incredbily handy and only adds in one more step when compared to sports drinks, and isn't a big sacrifice to make considering their price and how low in calories they are.

If you want to bring them with you on a run but have nowhere to store them, you should check out some quality running belts to make things easier! 

This product comes with 200mg of vitamin C and 2.5mg of Iron, which are known to help contribute to the normal function of the immune system. This will help to boost your recommended daily allowance in Vitamin C and Iron, plus the absorption of other nutrients that you consume throughout the day. 

If you're wondering; when should you take hydration tablets?, you're not alone as it's a question that many athletes ask!

It's important to understand that when you put yourself under the strain of heavy training, you will normally sustain a negative impact on your immune system. 

This will normally occur between 3-72 hours after training, and can lead to a number of respiratory issues. This will have an impact on the athlete’s health and performance and therefore it’s vital to take them either during or post-workout. 

Individuals may think it’s better to take multivitamins however, the SiS Immune contains key electrolytes which will aid hydration after exercise as well provide important support of immune function. Multivitamins tend to contain ingredients which your body does not need, but you can rest assured that a product such as this will only provide you with the essentials. 

Similarly to the previous product from Wiggle, you will be able to purchase 20 tablets in one go, which will ensure you get up to 10 litres of electrolyte hydration. In terms of price, it’s currently 40% off as of March 2020 at £4.20, which is a great price considering how expensive some energy drinks are! 

3. BulkPowders Hydration Tablets 

Price: £3.99

when to use hydration tablets

If you’re looking for cycling hydration tablets, then look no further! This product from BulkPowders has been formulated with electrolytes and B vitamins which are known to contribute to a reduction of tiredness and fatigue. 

Another great note on these hydration tablets is that they contain an array of electrolytes which include other ingredients such as Potassium, Sodium, Magnesium and Calcium. Each tablet also provides both Vitamin B1 and B6 which will help contribute to the reduction of tiredness and fatigue. 

The BulkPowders hydration electrolyte tablets come in 2 flavours, are easy to consume and can be taken throughout any time of the day. If you’re looking for hydration tablets without sweeteners, they may be very hard to come by! However, one great thing about these tablets is that they're free from any stimulants and are naturally low in sugar. 

They will provide you with the important electrolytes that you will lose when you sweat, which is all you really need to know if you're not interested in the science element behind electrolyte tablets. 

If someone you know is a keen cyclist, and would like to grab them something else alongside a product such as this, see our helpful gift guide for cyclists for more information

In terms of price, the product costs £3.99 and comes in a pack of 20 which is ideal for individuals who would like to save money rather than buying drinks that have a high sugar content. 

4. High5 Zero Hydration Tablets 

Price: £4.19 

what are the best hydration tablets

If you’re looking for one of the best hydration tablets on the market then you’re in the right place! With added vitamins and nutrients that include sodium, magnesium and potassium, the ZERO hydration tablets help to support a healthy immune system.

The magnesium in the ZERO tablets contributes to electrolyte balance and reduces fatigue, which in turn helps with protein synthesis. 

They can be used for a range of sporting activities such as running, cycling, swimming, rugby, and countless more! They can also be used for individuals who work in hot environments as well, even if they're not particularly active.  

What’s great about this product is that you don’t have to stick to one flavour at all. You will be able to try up to 10 different flavours, one of which is neutral. The neutral flavour is essentially flavourless, which would be ideal for anyone who just wants to add the product to their cordial or diluted juice to create a zero-calorie sports drink!  

If you head over to directly there are exclusive flavours such as apple, cinnamon and mango, making it one of the most exciting products out there in terms of flavour! 

In terms of price as of March 2020, this product has been discounted by 40% from £6.99 to £4.19! Like the previous products, it comes with 20 dissolvable tablets which is a very cost-efficient method of getting needed electrolytes which are lost during sweat.

5. SiS Hydro Tablets

Price: £7.00 

when should you take hydration tablets

If you’re looking for sports hydration tablets then you’re certainly in the right place. These tablets are designed to ensure nothing but peak performance!

They will quickly dissolve in water and ensure that you're topped up with electrolytes without having to consume extra calories. They will also meet your sodium requirements, which are proven to help with much better hydration compared to drinking water alone. 

When you do moderate to intense exercise, you could potentially lose up to 2 litres of sweat depending on environmental conditions. It’s important to note sodium is probably the most important electrolyte which helps to stimulate thirst, improve taste and promote absorption and retention of water. 

Dehydration regularly occurs when fluids and electrolytes are not replaced, and can often lead to fatigue, which is not only dangerous but can lead to a loss of overall motivation. SIS GO Hydro contains a specific mixture 300mg of electrolytes, and can be used either before exercise or during your sessions. Ever struggled with a loss of motivation? It might be a good idea to take a look at the best fitness podcasts to give yourself that extra boost! 

Another way to gain extra mental stimulation from the SiS Hydro Tablets in particular is by selecting the additional caffeine option, which will improve alertness and overall concentration. The product is great as it comes in a choice of 6 flavours and costs only £7.00 per pack considering it's vegan friendly! 

6. Nutrition X - Hydra 10 

Price: £24.99

how do hydration tablets work

We're providing something a little different by listing this product from Nutrition 10, as it contains the same amount of carbohydrates and electrolytes as some of the other rehydration solutions on the market. In fact, it may even contain more sodium than other leading branded sports drinks as well! 

It's essentially a rehydration powder that contains additional magnesium and B vitamins which are both beneficial for the body. You'll be glad to know that the taste of the powder is not gritty, which certainly helps you to drink more of the solution, which in turn promotes a good level of hydration. 

It’s vital for any athlete to drink additional fluids containing electrolytes either before, during, or post-workout. It’s important to refuel as fluid loss impacts exercise and performance. The Hydra 10 has a unique formulation of glucose polymer to help ensure optimised hydration. 

As mentioned earlier, there are 2 added components to this mixture which are magnesium and B vitamins. Magnesium is one of the key electrolytes which is lost during sweat and if not replaced, can often lead to cramping of the muscles during exercise. Also, magnesium helps improve your lactate response during exercise. 

B vitamins are an added bonus as they help boost your energy levels and your immune system, which is vital in helping you to recover as quickly as possible whether it be from a run, weight training, or any other form of intense physical activity. 

In terms of price, it does cost £24.99 however due to its 500g weight, it’s definitely a cheap alternative to the hydration tablet!

7. Phizz 

Price: £7.99

what is a hydration tablets

If you’re looking for one of the best hydration tablets on the market, this brand has taken the market by storm! Phizz has been formulated to the World Health Organisation oral rehydration standards, which ensures that it is a quality product. Phizz acts as a water multiplier with an amazing 13 vitamins and minerals for wellness and recovery.

The electrolytes help to hydrate the body, regulate nerve and muscle function, and rebuild damaged tissue. Phizz contains 5 electrolytes which include chloride, bicarbonate, magnesium, calcium, potassium and sodium! 

If you’re wondering, are hydration tablets good for you?, the answer to the question in this context is that Phizz is naturally low in calories, and even increases the body's absorption of water. It also contains 8 B vitamins which includes Niacin (B3) and Riboflavin (B2) which can also help reduce tiredness and fatigue while promoting brain function. 

What’s added to an already amazing list of vitamins and minerals is Vitamin C and Zinc which have powerful antioxidant properties that boost the immune system. Vitamin C is vital to help the body release energy and recover from tiredness and fatigue post-workout. 

You don’t even need to use the tablets for workouts, as you could still use them safely when you are dehydrated after a flight, or feeling mentally drained from work, for example!  

In terms of price, the product costs £7.99 and comes with a choice of 2 flavours (apple and blackcurrant or orange). If you want to upgrade your water bottle, which you'll undoubtedly be using to take these tablets, why not see our guide to choosing sports water bottles for more info on the best products out there. 

8. One Pro Nutrition - Ultra Hydration Tabs 

Price: £8.50 - £67.99 

what does hydration tablets do

If you’re looking for hydration tablets without sweeteners then this all-natural product is for you! There are no artificial flavours, sweeteners or preservatives, which will give you confidence in the quality of the ingredients involved. 

The tablets contain L-Citrulline which is an amino acid which is naturally produced by the body. Taking L-Citrulline will help to increase blood flow, reduce fatigue and help you to work harder for a longer period of time. 

There are 8 vitamins which include B, C and E which will improve energy production, increase your exercise duration and improve performance as well. 

These sports hydration tablets also contain added electrolytes which include sodium, potassium, calcium and magnesium. Having these extra electrolytes will ensure rapid hydration as you will lose electrolytes as you sweat. 

There’s additional Zinc which helps with energy production and improves your immune system simultaneously! 

This product is vegan friendly as well as being gluten-free, which is a great bonus. It also contains a natural sweetener called Stevia which is gentle on your stomach. 

There are also natural binders such as inulin and starch that are sourced from plant fibres. The only presarvative used in these cycling hydration tablets is citric acid which ensures you do not receive an upset stomach or any irritation to the throat. 

In terms of price, the reason why it varies is because you would be able to buy these in a much larger volume, which ultimately means that you can make this product last a lot longer in comparison to others. 

9. O.R.S Hydration Tablets 

Price: £4.99 

what do hydration tablets do

If you’re looking for the best industry-standard then this product from O.R.S could be what you're looking for. It is based on the World Health Organisation oral rehydration formula which has been scientifically proven to provide faster and effective hydration.  

These salt hydration tablets are naturally low in calories and have a number of electrolytes to drink for faster and more effective hydration. 

This is a perfect companion for sports and exercise as you can take it with you wherever you go! You could even take it travelling with you as people tend to get dehydrated during flights. As well as that, you would be able to take it with you when visting hot climates, as you would be losing lose key electrolytes through sweat. 

You would just simply drop the tablet, let it dissolve and drink as if it’s normal water. It’s definitely a less messier way to replenish electrolytes. These would be the ideal cycling hydration tablets as you can even take them with you on your bike rides, as they're easy to carry and could even be disolved in your water bottle before you leave. 

This product comes with 24 tablets which will make 12 litres of electrolyte water, which is perfect for individuals who want to be cost-efficient and stop buying high-sugar energy drinks. It's also a larger quantity than you get with other products of the same price, so do keep this in mind! 

10. Complete Hydration Drink - Bulk Powders 

Price: £10.99 (500G)

what is a hydration tablets

This is another product from Bulk Powders which is a high-performance drink that can be mixed to make an isotonic solution and is a great alternative to hydration tablets! 

This hydration tablet alternative contains an advanced blend of 3 carbohydrates which consists of dextrose, maltodextrin and fructose to take advantage of different carbohydrate absorptions. 

There’s also added BCAA into the formula alongside 4 electrolytes which are sodium, potassium, magnesium, and calcium. Along with these is Vitamin B6 which helps contribute to normal energy metabolism! 

If you usually use market-leading brands during your workouts but you are looking for something that will save you money in the long-run as well as providing excellent value for money, then this product is for you. 

There have been studies that have shown that adding dextrose and fructose results in better and higher carbohydrate oxidation than just glucose alone. Also, research has shown that taking Vitamin B6 will help reduce tiredness and fatigue. Vitamin B6 also helps convert food to energy more efficiently! 

This product would be suitable for endurance athletes, whether they're runners or cyclists. From just a 500g bag you would get up to 12 servings! This is a great way to of course save a significant amount of money if you buy hydration drinks in bulk. 

11.  Electrolytes Plus Tablets

Price: £10.99 

 what does hydration tablets do

This product from MyProtein is fantastic if you want to replenish the loss of electrolytes. If you are wondering when to use hydration tablets, this product is ideal to properly rehydrate post-workout, especially with these electrolyte plus tablets. 

If you’re looking for a way to simply top up your essential minerals to stay functioning as you should be during exercise, these electrolyte plus tablets are especially useful after intense training sessions and when you have been sweating a lot. 

This product would help to maintain salt balance and contains all the essential electrolytes! All you need to do is to take one tablet twice per day, especially if you're working out. 

This is a little different compared to the hydration soluble tablets because you will just need to take them with water and food, but some people do prefer this method, especially if they're struggling to find soluble tablets with a neutral taste. 

This will make it easier to not bring these tablets with you on your runs or cycles and instead just to take them at home after your workout. If you want to go for a run but you are struggling to find your groove, this article on the top running apps for beginners will definitely help you! 

12. Bulk Powders Electrolyte Powder

Price: £19.99

what are the best hydration tablets

If you’re looking for alternative hydration tablets in the UK, many electrolyte products only contain two electrolytes, whereas this product from Bulk Powders contains a number of electrolytes such as Sodium, Potassium, Calcium and Magnesium. 

When you add carbohydrates to electrolyte powder it will help maintain endurance performance for longer periods. The electrolyte powder will also allow you to control the amount of electrolytes which would be relative to your carbohydrate drink. You could potentially use this powder to increase levels of electrolytes if they are low!

Consuming electrolyte powder has a number of benefits. It will help to contribute to your electrolyte balance, and ensure that you will have the vital electrolytes when you lose them through sweat. The powder will help endurance athletes as it will help contribute to normal muscle function after intense sessions. 

In terms of price, you can pick up a 100g powder for £4.99 but you will save £5.04 overall if you buy the 500g powder! 

13. Rapid Rehydr8 - Elite Sportz Equipment 

Price: £19.97

how do hydration tablets work

These tablets from Elite Sportz are great because you will reduce the risk of muscle cramps without having to drink high-sugar content carbohydrate drinks! 

You can either take them pre, post or during your workout. These supplements are ideal for runners, cyclists, athletes, weightlifters, and many more who are into their intense workouts.

One great thing to note is that these tablets are capsule-shaped to ensure that the pills are easy to swallow. The special formulation will also ensure that they're easy on the stomach, which is great for those who are sensitive to some exercise products. 

Rapid Rehydr8 has added a number of electrolytes within the tablet. These are potassium, calcium, and magnesium to ensure a more balanced blend of electrolytes which are regularly lost through sweating, and to help proper muscle contraction during exercise! 

What’s great about this product is that if you are not satisfied, there’s a 1-year warranty so you can even get a full refund. 


We hope that after following our list, you have found the right product for your hydration needs!

We know how difficult it can be to choose something like this, especially if you haven't tried it out before, but at least you have a starting point rather than an endless list of products thrown your way. 

Want to find out more about how you can turn your passion for fitness into a full-time career? Check out our course in Advanced Sports Nutrition if this is an area of interest, or download our latest prospectus here for more info on our range of fitness courses!  

Written by Zac Yeo

Fitness Content Executive, OriGym

Join Zac on Facebook at the OriGym Facebook Group

With a BA (Hons) Politics and International Relations from Kingston University and previous experience working in the finance sector, Zac’s passion for fitness brought him to OriGym, and ultimately led him to become a qualified Personal Trainer and Nutrition Specialist. With a keen interest in developing consumer trends, Zac enjoys the creation of deep, insightful content catering to new trends and has contributed to various publications including the Daily Star. Outside of work, Zac can be found watching football, either in-person supporting Charlton Athletic or virtually on Fifa.

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