10 Best Sports Electrolyte Tablets in The UK

Last updated on 19/07/2025

Advertising disclosure

Nuun Sport Electrolyte Tablets | Hydration with Vitamin C | Vegan, Gluten-Free, No Artificial Sweeteners | Orange Flavor, 8 Pack (80 Tablets)

10% Off

Why We Love It

Enhanced hydration for workouts.
Natural and clean formula.
Convenient and portable packaging.

Main Highlights

Nuun Sport is an Electrolyte-Rich Sports Drink Tablet, enhanced with electrolytes and bursting with delicious fruity flavor. Mix with water for a hydrating beverage to keep you powering through your next workout.
Our tiny bubbles go to work to ensure your body quickly soaks up all the goodness of Nuun's electrolyte blend.
Nuun Sport Electrolyte Tablets enhance your workout and/or your work day naturally through improved hydration. Keep a tube in your gym bag, car, purse, hiking pack or anywhere you'll want to mix up a healthy, replenishing drink.
The Nuun product you know and love just set a personal record: Still delivering the clean, hydrating formula that inspires a healthier, happier, more active lifestyle, but now even tastier and cleaner. Clean Formulation: Free from artificial flavouring, colouring or sweeteners.
At first look, you’ll notice Nuun Sport’s snazzy packaging makeover. We hope that our new look will help to better identify the Nuun product that’s right for you.

Nuun Active: Tri-Berry Electrolyte Enhanced Drink Tablets (3-Pack of 10 Tablets)

Free Shipping

Main Highlights

Packed With Electrolytes, Light Flavor, Clean Ingredients, And Portable, Nuun Active Hydration Is The Perfect Sports Drink.The Electrolytes Found In Nuun Will Help Alleviate Cramps, Help Muscles Function, Communicate And Burn Energy Efficiently.Nuun Active Hydration Comes In 9 Flavors: Orange, Lemon+Lime, Strawberry Lemonade, Fruit Punch, Tri-Berry, Grape, Tropical, Citrus Fruit, And Watermelon.

Fast&Up Reload – Mixed Berry Flavour – 80 Effervescent Tablets – Instant Electrolytes for Rapid Hydration & Energy - Added Vitamin C & B12 for Performance, Wellbeing, Travel & Recovery –Vegan

Free Shipping

Why We Love It

Provides instant hydration and nutrients.
Optimizes recovery, prevents dehydration.
Prevents muscle injuries, stress.

Main Highlights

✓ Fast&Up Reload is formulated with an ideal combination of electrolytes, vitamins, minerals, and antioxidants that help provide instant hydration.
✓ Fast&Up Reload is a hypotonic drink that helps with faster electrolyte replenishment, maintains fluid balance, optimises the recovery process, and prevents dehydration
✓ Helps to maintain prevent muscle related injuries, stress, cramps and exhaustion
✓ Faster nutrient absorption and action with Swiss effervescent technology
✓ How to Use: Drop 1 effervescent tablet in 250 ml water, wait until it dissolves completely in water and drink. You can consume the drink in between any activity, after workout or at the end of a tiring day

fourfive Hydration Tablets (Orange & Mango) Low Calorie Vitamin Electrolytes, Vegan, Magnesium & Calcium, Sports Hydration - 3x20 Effervescent Tablets

Free Shipping

Why We Love It

Restores lost hydration fast.
Delicious natural flavors.
Perfect for workouts.

Main Highlights

HYDRATION TABLET: fourfive electrolyte effervescent tablets contain essential vitamins & electrolytes for restoring lost hydration during exercise - designed by athletes for optimal sport performance
ELECTROLYTES: A hydration tablet which dissolves in your water bottle - keep up your energy levels whilst you workout, prevent injuries caused by dehydration & recover faster
VITAMINS: Including calcium, Vitamin C & a combination of B vitamins to keep you strong & energised - independently tested to guarantee every batch achieves 'banned substance' approval
NATURAL: The perfect alternative to sugary energy drinks - vegan, caffeine free, no chalk - low calorie & a delicious natural orange and mango flavour
EASY TO USE: Dissolve 1 tablet in 500ml water & sip throughout or after exercise - for best results, pair with our oils, capsules & multivitamins

O.R.S Sport Hydration Tablets - Orange, Pack of 1 | Sports Electrolytes with Vitamin D & Magnesium for Rehydration & Recovery | Salts for Electrolyte Replacement | Vegan, Gluten-Free & Low Calorie

Free Shipping

Why We Love It

Quickly absorbs and hydrates longer.
Delicious and convenient hydration solution.
Safe and effective for everyone.

Main Highlights

ELECTROLYTE HYDRATION TABLETS: Our soluble tablets add a mix of oral rehydration salts, electrolytes, vitamins & minerals to water, for optimum fluid balance so you stay hydrated for longer; a functional dose of glucose delivers energy
A HYDRATION TABLET FOR ATHLETES: Sports electrolytes enhanced with Vitamin D & Magnesium to hydrate & replenish salts; relief from dehydration when running, cycling, at the gym, or to support sports performance, post workout recovery & focus
RAPID & EFFECTIVE SPORTS REHYDRATION: Clinically proven for fast & effective electrolyte replacement; backed by science & the World Health Organization for a healthy & safe formula; the best reliable supplements to rehydrate & fuel your body
VEGAN, GF & LOW-CALORIE: ORS Sport is a low-calorie (8.5 kcal) liquid sports hydration solution with a vitamin boost for adult nutrition; trust in our naturally-flavoured, vegan, gluten-free, lactose-free & halal formula
BEST TASTING EFFERVESCENT SPORTS SUPPLEMENT: Drop 1 dissolvable tablet in 500 ml drinking water, dissolve & drink the delicious electrolyte solution to hydrate before, during & after exercise; 1 tube contains 20 juicy fizzy Orange tablets

Optimal hydration with key electrolytes.
Vegan, Keto-friendly, and allergen-free.
No sugar-induced absorption delays.

Main Highlights

Formulated for rapid absorption. Our advanced rehydration tablets quickly restore your body's fluid balance. Each tablet is packed with the critical electrolytes – Sodium, Potassium, Calcium, and Magnesium – essential for combatting dehydration and supporting optimal cellular function.
Fast acting, effervescent formula. Dissolve ONE hydro tablet in 500ml of water, making an optimal electrolyte concentration of 98mmol/L for rehydration.
Stay balanced and comfortable. Hydro Boost regulates body temperature and maintains pH by replenishing water and lost electrolytes; this ensures optimal performance and recovery.
Perfect for every lifestyle: Crafted for your well-being, these hydro tablets are vegan and vegetarian, sugar-free, lactose-free, and gluten-free. We've also ensured no caffeine or artificial additives (colours, flavours, preservatives), making them a clean, keto-compatible choice for conscious consumers.
Hydrate smarter. Our electrolyte blend is meticulously formulated for quick and efficient absorption, bypassing the delays often caused by the high sugar content in traditional sports drinks.

Electrolyte Tablets - Rapid Acting High Strength Rehydration Tablets with Sodium, Potassium, Magnesium - Muscle Cramp & Dehydration Relief for Sports Running, Keto, Fasting Salts - 120 Vegan Capsules

Free Shipping

Why We Love It

Optimal hydration with electrolytes.
Packed with pure Himalayan salts.
Effortless to take anywhere.

Main Highlights

Mr Run’s RAPID REHYDRATION tablets with electrolytes for hydration during and after exercise or when fasting, travelling, for recovery and revival or general daily rehydration
HYDRATION TABLET WITH HIMALAYAN SALTS to provide best and purest forms of minerals. A unique isotonic tablets hydrating formula based on research science in sport and nutrition and contains only the active ingredients and pure pink Himalayan salt
SUGAR FREE ELECTROLYTES TABLETS - compared to other isotonic sports drinks our pro hydration tablets contain only electrolyte minerals: sodium, potassium, magnesium etc. Zero sugar or calories
PERFECT RE-HYDRATION FOR EXERCISE, FASTING, KETO: take during or after exercise for your sports hydration requirements - to replace minerals and salts lost through sweat, or use for recovery, as keto electrolytes or fasting salts
CONVENIENT, QUICK, EASY TO TAKE electrolytes tablets: electrolytes powder packed in small and easy to swallow vegan capsules, as a simple alternative to electrolytes powder, isotonic powder or hydration sachets. Just take with some liquid - water or juice. No mixing or measuring required

Science in Sport Hydro Electrolyte Tablets 20 pcs. Cola + Caffeine – Vegan & Gluten-Free, with Sodium, Calcium, Potassium & Magnesium for Balanced Electrolyte Levels (Packaging May Vary)

Why We Love It

Cola flavor hydration tablets.
Scientifically proven superior hydration.
Vegan and gluten-free.

Main Highlights

VALUABLE ACTIVE INGREDIENT COMPLEX: Our SiS electrolyte tablets maintain electrolyte balance with a complex of minerals and vitamins, making them ideal for anyone engaged in moderate to intense physical activity
CAFFEINE FOR A MENTAL BOOST: Enriched with caffeine, the effervescent tablets provide a mental performance kick to help maintain focus and concentration
OPTIMAL HYDRATION FOR PEAK PERFORMANCE: With their carefully balanced sodium concentration, the electrolyte tablets promote hydration. A well-regulated water balance helps the body to feel ready for training
VEGAN: Made from high-quality ingredients, the electrolyte sport tablets are vegan and free from genetic engineering. Ideal for anyone following a plant-based sports nutrition regimen
SIS SCIENCE IN SPORT: Science in Sport is a pioneer in sports nutrition. Since 1992, we have collaborated with research institutes, elite athletes, and sports scientists

Precision Hydration Lite Electrolytes Tablets - Multi Strength Effervescent Hydration Tablet - Low Calorie, Gluten Free, Vegan/Vegetarian Friendly, Mild Citrus Flavour (1500mg/l - Purple, 1 Tube)

Free Shipping

Why We Love It

Low-calorie effervescent tablets.
High sodium concentration.
Independently batch tested.

Main Highlights

DELIVERS 1500MG OF SODIUM PER LITRE WHEN MIXED TO GUIDELINES
LOW-CALORIE EFFERVESCENT TABLETS added to water to replace what you lose when sweating
ONE TABLET PER 500ml (16oz) of water. 250mg/l & 500mg/l tubes contain 15 tablets per tube 1000mg/l & 1500mg/l tubes contain 10 tablets per tube
MANUFACTURED IN EUROPE and independently batch tested for a wide range of prohibited substances on the World Anti-Doping Agency (WADA) list
PACKAGING UPDATE - Please note that whilst we transition to our new tube design, you may receive the older style packaging. The product inside is the same

SaltStick Fastchews, Electrolyte Replacement Tablets for Rehydration, Exercise Recovery, Youth & Adult Athletes, Hiking & Sports Recovery, 2 x Packets of 10 Tablets (Lemon Lime)

Free Shipping

Why We Love It

Boosts stamina and hydration.
Ideal for active lifestyles.
Clean, simple ingredients.

Main Highlights

Chewable electrolyte tablets that quickly dissolve to help reduce cramps and heat stress while increasing stamina.
Bundle includes 2 packets of 10 individual flavored FastChews tablets.
Ideal for teens and adults, providing rehydration for running, cycling, triathlon, swimming, soccer, football, weight lifting, hiking, camping, and more.
Clean and simple ingredients; Non-GMO, Vegan, and Gluten Free
Suggested use: 2 tablets per 15-30 minutes during activity, each tablet contains 50mg sodium, 15mg potassium, 3mg magnesium, similar to what the body loses through sweat.

8.7

Excellent

We scanned 1538 products

We reviewed these offers relevant to the Sports Electrolyte Tablets within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Nuun, FAST&UP, fourfive, O.R.S, Vitaliva, Mr Run, Science in Sport, Precision Hydration, SaltStick, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Sports Electrolyte Tablets in the market, we considered we took a deep dive into 7691 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Nuun Sport Electrolyte Tablets | Hydration with Vitamin C | Vegan, Gluten-Free, No Artificial Sweeteners | Orange Flavor, 8 Pack (80 Tablets). We love many things about this product by Nuun. What sets it apart from the competition is Enhanced hydration for workouts, Natural and clean formula, Convenient and portable packaging.
The best value product for most shoppers and where user satisfaction is continuously the highest is Nuun Active: Tri-Berry Electrolyte Enhanced Drink Tablets (3-Pack of 10 Tablets) by Nuun based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Sports Electrolyte Tablets and the best cost-to-value ratio is Nuun Sport Electrolyte Tablets | Hydration with Vitamin C | Vegan, Gluten-Free, No Artificial Sweeteners | Orange Flavor, 8 Pack (80 Tablets)at Nuun with a 10% discount.
Our list of the best Sports Electrolyte Tablets is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Sports Electrolyte Tablets in The UK

Related Deals You Might Like for Sports Electrolyte Tablets

Science in Sport Hydro Electrolyte Tablets 20 pcs. Berry – Vegan & Gluten-Free, Ideal to Promote Hydration and Maintain Electrolytes Balance (Packaging May Vary)

HIGH5 ZERO Electrolyte Tablet - Hydration Tablets Enhanced with Vitamin C - 0 Calories & Sugar Free - Boost Hydration, Performance & Wellness - Berry, 20 Tablets (20x, Pack of 1)

HIGH5 ZERO Protect Electrolyte Tablets | Hydration Tablets with Vitamin C & D | 0 Calories & Sugar Free | Boost Hydration, Performance & Wellness | Orange & Echinacea, 20 Tablets (20x, Pack of 1)

HIGH5 ZERO Caffeine Hit ElectrolyteTablet - Hydration Tablets Enhanced with Vitamin C - 0 Calories & Sugar Free - Boost Hydration, Performance & Wellness - Berry, 20 Tablets (20x, Pack of 1)

Science in Sport Hydro Electrolyte Tablets 20 pcs. Pink Grapefruit – Vegan & Gluten-Free, Ideal to Promote Hydration and Maintain Electrolytes Balance (Packaging May Vary)

Phizz Electrolytes, Multivitamin & Hydration Tablets - 20 Effervescent Rehydration Electrolyte Tablets - 18 Vitamins & Minerals, Vitamin C, Vegan, Vegetarian & Low Calorie

Electrolyte Pro 120 Tablets with Potassium, Calcium, Magnesium and Sodium | Salt Replacement, Cramp & Hydration Recovery | Salt Tablets | Vegan | GMP Approved | MOBU UK

Precision Hydration Electrolyte Capsules - 15 Blister Packed (Waterproof) / Salt Capsules - Combat Cramp - No Artificial Ingredients, Digestion-Friendly Formula - Gluten Free, Vegan Friendly (1-Pack)

Precision Hydration Electrolyte Tablets - Multi Strength Effervescent Hydration Tablets - Combats Cramp - Low Calorie, Gluten Free, Vegan/Vegetarian Friendly (1 Tube, 1000mg/L - Orange Tube)

We scanned 1538 products

We concluded that: